Investigation of Thermo-hydraulic Performance of Nanofluids in a Zigzag Channel With Baffles
Year: 2021
Type: article
Abstract: In this study, the thermo-hydraulic performance of Al2O3-water nanofluid in a zigzag channel with baffles were numerically investigated. The mass, momentum and energy equations are discretized with finite volume approach and iterations are solved with SIMPLE algorithm. Reynolds number (200 ≤ Re ≤ 1600), and nanoparticle volume fraction (0.01 ≤ φ ≤ 0.03) were changed, and other parameters kept constant. The lower and upper zigzag surfaces of the channel were kept at constant temperature, and the Nusselt number and friction factor along the channel were calculated. The velocity and temperature contours in the channel were obtained in order to observe the effects on flow and heat transfer of the paramerers. The results shown that the increasing particle volume fractions and Reynolds numbers improved the heat transfer, while the friction factor increased slightly. The best thermo-hydraulic performance was obtained at Re = 1400 and φ = 3% as approximately 1.15.
Author: Selma AKÇAY
Institutions: Çankırı Karatekin University, National Environmental Agency
Language: Turkish
Subfield: Fluid Flow and Transfer Processes
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4200451007