Journal ArticleDOI
Investigation on Convective Heat Transfer and Flow Features of Nanofluids
Yimin Xuan,Qiang Li +1 more
TLDR
In this article, an innovative new class of heat transfer fluids can be engineered by suspending metallic nanoparticles in conventional heat-transfer fluids, which are expected to exhibit high thermal conductivities compared to those of currently used heat transfer fluid, and they represent the best hope for enhancing heat transfer.Abstract:
Low thermal conductivity is a primary limitation in the development of energy-efficient heat transfer fluids that are required in many industrial applications. In this paper we propose that an innovative new class of heat transfer fluids can be engineered by suspending metallic nanoparticles in conventional heat transfer fluids. The resulting {open_quotes}nanofluids{close_quotes} are expected to exhibit high thermal conductivities compared to those of currently used heat transfer fluids, and they represent the best hope for enhancement of heat transfer. The results of a theoretical study of the thermal conductivity of nanofluids with copper nanophase materials are presented, the potential benefits of the fluids are estimated, and it is shown that one of the benefits of nanofluids will be dramatic reductions in heat exchanger pumping power.read more
Citations
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Journal ArticleDOI
Performance comparison of the plate heat exchanger using different nanofluids
TL;DR: In this article, the heat transfer performance of the plate heat exchanger has been investigated using different nanofluids (CeO2, Al2O3, TiO2 and SiO2) for various volume flow rates and wide range of concentrations.
Journal ArticleDOI
Lattice Boltzmann simulation of nanofluid in lid-driven cavity
TL;DR: In this article, the effects of Reynolds number and solid volume fraction for different nanofluids on hydrodynamic and thermal characteristics are investigated, and the effective thermal conductivity and viscosity of a water-based nano-fluid is calculated by Chon and Brinkman models, respectively.
Journal ArticleDOI
Influence of CuO nanoparticles in enhancing the thermal conductivity of water and monoethylene glycol based nanofluids
TL;DR: In this article, the effect of CuO nanoparticles on the thermal conductivity of base fluids like mono ethylene glycol and water was studied with regard to various factors; concentration of nanoparticles, types of base fluid, sonication time and settlement time.
Journal ArticleDOI
Sorption and agglutination phenomenon of nanofluids on a plain heating surface during pool boiling
Zhen-Hua Liu,Liang Liao +1 more
TL;DR: In this article, the authors focused on the sorption and agglutination phenomenon of nanofluids on a heated surface and showed that the very thin nanoparticles sorption layer also caused a decrease in the solid-liquid contact angle on the heating surface which led to an increase of the critical heat flux.
Journal ArticleDOI
A review of heat transfer enhancement techniques in plate heat exchangers
TL;DR: In this paper, a comprehensive review of previous works regarding the effects of chevron corrugation geometrical parameters on the performance of plate heat exchangers is provided, focusing on passive surface techniques and the use of nanofluids.
References
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Book
Introduction to Heat Transfer
TL;DR: In this article, the physical concepts and methodologies of heat and mass transfer are explained for advanced undergraduate engineering majors, using a systematic method for problem solving and discusses the relationship of heat transfer to many important practical applications through examples and problems.
Journal ArticleDOI
Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles
Bock Choon Pak,Young I. Cho +1 more
TL;DR: In this article, the authors used a Brookfield rotating viscometer to measure the viscosities of the dispersed fluids with γ-alumina (Al2O3) and titanium dioxide (TiO2) particles at a 10% volume concentration.
Journal ArticleDOI
Thermal Conductivity of Heterogeneous Two-Component Systems
R. L. Hamilton,O. K. Crosser +1 more
Journal ArticleDOI
Measuring Thermal Conductivity of Fluids Containing Oxide Nanoparticles
TL;DR: In this paper, a transient hot-wire method was used to measure the thermal conductivity of a small amount of nanoparticles and the experimental results showed that these nanoparticles have substantially higher thermal conductivities than the same liquids without nanoparticles.
Journal ArticleDOI
Conceptions for heat transfer correlation of nanofluids
Yimin Xuan,Wilfried Roetzel +1 more
TL;DR: In this article, the authors proposed two different approaches for deriving heat transfer correlation of the nanofluid, and investigated the mechanism of heat transfer enhancement of the nano-fluid.