Optimal ferrofluids for magnetic cooling devices.

ABSTRACT: Superior passive cooling technologies are urgently required to tackle device overheating, consequent performance degradation, and service life reduction. Magnetic cooling, governed by the thermomagnetic convection of a ferrofluid, is a promising emerging passive heat transfer technology to meet these challenges. Hence, we studied the performance metrics, non-dimensional parameters, and thermomagnetic cooling performance of various ferrite and metal-based ferrofluids. The magnetic pressure, friction factor, power transfer, and exergy loss were determined to predict the performance of such cooling devices. We also investigated the significance of the magnetic properties of the nanoparticles used in the ferrofluid on cooling performance. γ-Fe₂O₃, Fe₃O₄

SUBMITTER: Pattanaik MS 

PROVIDER: S-EPMC8683428 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature