Heat transfer and pressure drop investigation of graphene nanoplatelet-water and titanium dioxide-water nanofluids in a horizontal tube

被引：30

作者：

Keklikcioglu, Orhan ^{[1
]}

Dagdevir, Toygun ^{[1
]}

Ozceyhan, Veysel ^{[1
]}

机构：

[1] Erciyes Univ, Dept Mech Engn, Fac Engn, TR-38039 Kayseri, Turkey

来源：

APPLIED THERMAL ENGINEERING | 2019年 / 162卷

关键词：

Graphene nanoplatelet; Titanium dioxide nanoparticle; Nanofluid; Heat transfer; Pressure drop; WATER/GRAPHENE OXIDE NANOFLUID; TRANSFER ENHANCEMENT; TRANSFER COEFFICIENT; TRANSFER PERFORMANCE; FLOW; TIO2; PIPE; SINK;

D O I：

10.1016/j.applthermaleng.2019.114256

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A continuous increase in energy consumption lead to more effective solutions for efficient use of energy in thermal systems. In order to save energy by improving the thermo-hydraulic performance of heat exchangers, a numerical and experimental study carried out on the thermo-hydraulic performance of Graphene nanoplatelet and Titanium dioxide nanoparticle addition to water flow through a horizontal tube. Graphene nanoplatelet (high price) and Titanium dioxide(low price) nanoparticles, which are frequently used in previous studies, were compared for the first time in order to provide users with a perspective in terms of therrno-hydraulic performance. The study was experimentally and numerically conducted with nanofluid weight fractions of 0.5%, 0.75% and 1.0% and the flow under turbulent conditions. The highest Nusselt number obtained Is 133.61 for the Titanium dioxide-water nanofluid and 173.54 for the Graphene nanoplatelet-water nanofluid with the weight fraction of 1.00%. Moreover, the friction factor results of Graphene nanoplatelet-water and Titanium dioxide-water nanofluids are close to each other at same Re number.

引用

页数：11

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