title   
  

Heat transfer enhancement with actuation of magnetic nanoparticles suspended in a base fluid

Şeşen, Muhsincan and Tekşen, Yiğit and Şendur, Kürşat and Mengüç, Pınar M. and Öztürk, Hande and Acar, Funda Yağcı and Koşar, Ali (2012) Heat transfer enhancement with actuation of magnetic nanoparticles suspended in a base fluid. Journal of Applied Physics, 112 (6). ISSN 0021-8979

This is the latest version of this item.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1063/1.4752729

Abstract

In this study, we have experimentally demonstrated that heat transfer can be substantially increased by actuating magnetic nanoparticles inside a nanofluid. In order to materialize this, we have utilized a miniature heat transfer enhancement system based on the actuation of magnetic nanoparticles dispersed in a base fluid (water). This compact system consists of a pool filled with a nanofluid containing ferromagnetic nanoparticles, a heater, and two magnetic stirrers. The ferromagnetic particles within the pool were actuated with the magnetic stirrers. Single-phase heat transfer characteristics of the system were investigated at various fixed heat fluxes and were compared to those of stationary nanofluid (without magnetic stirring). The heat transfer enhancement realized by the circulation of ferromagnetic nanoparticles dispersed in a nanofluid was studied using the experimental setup. The temperatures were recorded from the readings of thin thermocouples, which were integrated to the heater surface. The surface temperatures were monitored against the input heat flux and data were processed to compare the heat transfer results of the configuration with magnetic stirrers to the heat transfer of the configuration without the magnetic stirrers.

Item Type:Article
Additional Information:Article Number: 064320
Subjects:T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Q Science > QD Chemistry
Q Science > QC Physics > QC176-176.9 Solids. Solid state physics
ID Code:19500
Deposited By:Ali Koşar
Deposited On:18 Oct 2012 15:00
Last Modified:27 Nov 2012 10:30

Available Versions of this Item

Repository Staff Only: item control page