Eventos Anais de eventos
CONEM 2018
X Congresso Nacional de Engenharia Mecânica
HEAT TRANSFER IN CHANNELS USING NANOFLUIDS, POROUS MEDIA AND THE TWO ENERGY EQUATION MODEL
Submission Author:
Caroline Fernandes Farias , SP
Co-Authors:
Caroline Fernandes Farias, Marcelo De Lemos
Presenter: Caroline Fernandes Farias
doi://10.26678/ABCM.CONEM2018.CON18-1603
Abstract
Seeking a better performance in heat transfer systems, new technologies have been developed, such as the use of porous media and nanofluids. The reason is that, the porous media increases the contact area between the fluid and solid, and the nanoparticles increases the thermal conductivity of the working fluid. Therefore, this article aims at understanding the influence of nanofluids on the heat transfer by natural convection in ducts containing porous medium, using two energy equations model (2EEM). As it was expected, the heat increase linearly with the volumetric fraction of nanoparticles. Comparing the heat transfer values of the pure base and porous media, adding nanofluids, it can be 18% higher for a volumetric fraction of 2% of nanoparticles. The results are in full agreement with trends and data of forced convection in porous media saturated with ordinary fluids.
Keywords
Nanofluids, Heat transfer, 2EEM
