Flow Characterization and Evaluation of Heat Transfer Capabilities of Nanofluids

S. Tiwari, M. Cox, C. Tang
University of North Dakota, US

Keywords: nanofluids, pressure drop, viscosity, heat transfer coefficient

Summary:

Nanofluids present a promising future for heat transfer applications. They have been found to have better heat transfer capabilities than conventional cooling/heating fluids. They generally do not exhibit problems such as sedimentation, corrosion, and clogging that have been seen with two phase fluids consisting of micro/millimeter sized particles. However, for nanofluids to be used as heat transfer fluids in a variety of operations, proper characterization of various parameters such as viscosity, pressure drop, mass flow rate, heat transfer coefficient, concentration of nanoparticles are critical. The primary objective of this research is to achieve a better understanding of the thermal transport behavior of nanofluids with a potential to break through the conventional performance barriers of conventional fluids. This research illustrates a comprehensive study of the thermal transport phenomena of nanofluids. It combines the experimental evaluations of various thermophysical properties of nanofluids and the studies of different approaches to enhance heat transfer.