Improvement of Convection Heat Transfer by （改进的对流传热）.pdf

International Journal of Science and Research (IJSR), India Online ISSN: 2319-7064 Improvement of Convection Heat Transfer by Using Porous Media and Nanofluid: Review 1, 3 2 3 Raed Abed Mahdi , H A. Mohammed , K. M. Munisamy 1 Department of Mechanical Maintenance, Doura Power Station, Ministry of Electricity, 10022 Al-doura quarter, Almahdia place , Baghdad, Iraq, 2 Department of Thermo fluids, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Malaysia, 3 Department of Mechanical Engineering, College of Engineering, Universiti Tenaga Nasional, Jalan Ikram-Uniten, 43000 Kajang, Selangor, Malaysia Abstract: Porous media has two specifications: First its dissipation area is greater than the conventional fins that enhance heat convection. Second the irregular motion of the fluid flow around the individual beads mixes the fluid more effectively. Nanofluids are mixtures of base fluid with a very small amount of nanoparticles having dimensions from 1 to 100 nm, with very high thermal conductivities, so it would be the best convection heat transfer by using porous media and nanofluids. Thus studies need to be conducted involving nanofluids in porous media. For that, the purpose of this article is to summarize the published subjects respect to the enhancement of convective heat transfer using porous media and nanofluids and identifies opportunities for future research. Keywords: Nanofluids, Porous media, Effective thermal conduct