|
|||||
|
|
Comparison of the thermal performances of two nanofluids at low temperature in a plate heat exchanger |
|
| Authors: | Thierry Maré Salma Halelfadl Ousmane Sow Patrice Estellé Steven Duret Frederic Bazantay |
| Institution: | aUEB, LGCGM, Equipe Matériaux et Thermo-Rhéologie, INSA/Université Rennes 1, IUT de Saint-Malo, Rue de la Croix Désilles, CS51713, 35417 Saint-Malo Cedex, France;bLaboratoire Matériaux Mécanique et Energétique (LMME), Ecole Polytechnique de Thiès (EPT), Thiès, Senegal;cUEB, LGCGM, Equipe Matériaux et Thermo-Rhéologie, INSA/Université Rennes 1, IUT de Rennes, 3 rue du Clos Courtel, BP 90422, 35704 Rennes Cedex 7, France;dPôle Cristal, Centre Technique Froid et Climatisation, 22100 Dinan, France |
| Abstract: | The objective of this study is to compare experimentally the thermal performances of two types of commercial nanofluids. The first is composed of oxides of alumina (γAl2O3) dispersed in water and the second one is aqueous suspensions of nanotubes of carbons (CNTs). The viscosity of the nanofluids is measured as a function of the temperature between 2 and 10 °C. An experimental device, containing three thermal buckles controlled in temperature and greatly instrumented permits to study the thermal convective transfers. The evolution of the convective coefficient permits to study the convective thermal transfers. The evolution of the convective coefficient is presented according to the Reynolds number, at low temperature from 0 to 10 °C and for the two aforementioned nanofluids. An assessment of the pressure drops in the circuit as well as of the powers of the circulator and outputs is dealt with. |
| Keywords: | Nanofluid Nanoparticles Viscosity Transfers of convective heat Exchanger of heat plates Pressure drop Experimental |
| 本文献已被 ScienceDirect 等数据库收录！ | |