Journal ArticleDOI
Numerical investigation on heat transfer performance and flow characteristics in circular tubes with dimpled twisted tapes using Al2O3-water nanofluid
Lu Zheng,Yonghui Xie,Di Zhang +2 more
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TLDR
In this paper, the authors numerically examined heat transfer and flow in circular tubes fitted with dimpled twisted tape inserts, and Al 2 O 3 -water nanofluid is employed.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 2017-08-01. It has received 69 citations till now. The article focuses on the topics: Heat transfer enhancement & Heat transfer coefficient.read more
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Combination of nanofluid and inserts for heat transfer enhancement
TL;DR: In this article, a review of the literature on the area of heat transfer improvement employing a combination of nanofluid and inserts is performed, and the progress made and current challenges for each combined system are discussed, and some conclusions and suggestions are made for future research.
Journal ArticleDOI
Heat transfer performance of TiO2–SiO2 nanofluids in a tube with wire coil inserts
TL;DR: In this article, the authors presented the thermal hydraulic performance of TiO2-SiO2 nanofluids with wire coil inserts, which achieved the best condition for cooling system applications.
Journal ArticleDOI
Numerical investigation of rectangular-cut twisted tape insert on performance improvement of heat exchangers
TL;DR: In this article, a numerical analysis has been performed to investigate the flow structure and thermal hydraulic performance of turbulent flow through circular tube equipped with twisted tapes with different cut shapes, and the results show that both of heat transfer and pressure drop are dependent on the cut ratio.
Journal ArticleDOI
Energy saving in thermal energy systems using dimpled surface technology – A review on mechanisms and applications
TL;DR: In this article, a comprehensive review about the developments and current status of this technology employed in different thermal energy systems including heat exchangers, mini/micro energy systems, two-phase flow energy system, jet impingement cooling systems, and solar thermal energy system is presented.
Journal ArticleDOI
Experimental and numerical investigations of convection heat transfer in corrugated channels using alumina nanofluid under a turbulent flow regime
TL;DR: In this article, three corrugated channels, semicircle (SCC), trapezoidal (TCC), and straight (SC), are fabricated and tested with nanofluid Al2O3 volume fractions of 0, 1, and 2%.
References
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Journal ArticleDOI
Investigation on Convective Heat Transfer and Flow Features of Nanofluids
Yimin Xuan,Qiang Li +1 more
TL;DR: 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.
Journal ArticleDOI
The Viscosity of Concentrated Suspensions and Solutions
TL;DR: In this paper, an expression for the viscosity of solutions and suspensions of finite concentration is derived by considering the effect of the addition of one solute-molecule to an existing solution, which is considered as a continuous medium.
Journal ArticleDOI
Thermal Conductivity of Heterogeneous Two-Component Systems
R. L. Hamilton,O. K. Crosser +1 more
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