Title of article :
INVESTIGATION OF THERMAL PERFORMANCE OF AIR TO WATER HEAT EXCHANGER USING NANOFLUIDS
Author/Authors :
SAEID, NAWAF H. University of Nottingham , Malaysia Campus - Department of Mechanical, Materials Manufacturing Engineering, Malaysia , CHIA, TAN HENG University of Nottingham , Malaysia Campus - Department of Mechanical, Materials Manufacturing Engineering, Malaysia
Abstract :
In the present study the three-dimensional numerical simulation is selected as a tool to investigate the effectiveness of a cross flow heat exchanger. Water is selected to be mixed with nano-particles and flow inside a circular pipe while a pure air is flowing across it. Numerical simulations is carried out under laminar flow for both water and air sides. The thickness of the pipe is neglected in the present preliminary study. From the physics of the problem, the governing parameters can be determined as: the Reynolds, the type and the volume fraction of the nono-fluid. The effect of these governing parameters is studied and the results are presented. The results show significant enhancement of heat transfer with introduction of nano-particles, such as titanium-oxide (TiO2) nano-powder, compared to the pure base fluid. The accuracy of the results presented in the present study depends on the accuracy of the effective properties of the nano-fluids, which are taken from the open literature.
Keywords :
heat exchanger , nanofluids , effective thermal properties
Journal title :
IIUM Engineering Journal
Journal title :
IIUM Engineering Journal
