Enhanced heat transfer properties of RGO-TiO2 based Ethylene Glycol Nanofluids

被引：7

作者：

Bhunia, Mississippi Missouri ^{[1
]}

Das, Swati ^{[2
,3
]}

Chattopadhyay, Kalyan Kumar ^{[3
]}

Chattopadhyay, Paramita ^{[1
]}

机构：

[1] IIEST, Dept Elect Engn, Sibpur 711103, Howrah, India

[2] Anandamohan Coll, Kolkata 700009, India

[3] Jadavpur Univ, Thin Flim & Nanosci Lab, Kolkata 700032, India

来源：

MATERIALS TODAY-PROCEEDINGS | 2019年 / 18卷

关键词：

Nanofluids; Stable dispersions; thermal conductivity; viscosity; THERMAL-CONDUCTIVITY; PERFORMANCE;

D O I：

10.1016/j.matpr.2019.06.569

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stable nanofluids of ethylene glycol (EG) containing RGO-TiO2 composite structures has been achieved at two weight percentages (wt %) (0.015 & 0.025) without usage of surfactant. The composite material was synthesized via chemical treatment of previously synthesized TiO2 and GO. Nanofluids are witnessed to possess higher thermal conductivity than pure EG or EG containing same amount of TiO2; whereas no significant change in viscosity was noticed. Maximum 11 % enhancement in thermal conductivity is obtained with low viscosity and high zeta potential (-21.5 mV). The thermal response and infrared images of nanofluid surfaces support the rising slope in thermal conductivity. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：1096 / 1107

页数：12

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