Stable colloidal copper nanoparticles for a nanofluid: Production and application

被引：39

作者：

Gurav, Prasad ^{[1
]}

Naik, S. Srinu ^{[1
]}

Ansari, Komel ^{[1
]}

Srinath, S. ^{[1
]}

Kishore, K. Anand ^{[1
]}

Setty, Y. Pydi ^{[1
]}

Sonawane, Shirish ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Chem Engn, Warangal 506004, Andhra Pradesh, India

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2014年 / 441卷

关键词：

Nanofluid; Colloidal copper nanoparticles; Convective heat transfer; Heat transfer coefficient; HEAT-TRANSFER CHARACTERISTICS; THERMAL-CONDUCTIVITY; TRANSFER ENHANCEMENT; PERFORMANCE; FLOW;

D O I：

10.1016/j.colsurfa.2013.10.026

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The present study deals with the synthesis of water based stable colloidal nanoparticles and the study of their heat transfer characteristics. Heat transfer analysis at different loading (0-1.1 wt%) of copper nanoparticles in water was carried out at fixed Reynolds number. Enhancement in the heat transfer coefficient was also studied at different Reynolds numbers by keeping the wt% of copper nanoparticles in the range of 0.7-1.1 wt%. The heat transfer analysis of the copper nanofluid was carried out in a copper tube at constant heat flux. Established correlations were used for the determination of thermal properties in the laminar flow regime. The results showed that the heat transfer coefficient increases with an increase in the concentration of colloidal copper nanoparticles and Reynolds number. For a 1.1 wt% copper nanofluid, a 34% increase in the heat transfer coefficient was observed as compared to the base fluid (pure water). (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：589 / 597

页数：9

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