NUMERICAL AND REGRESSIONANALYSIS OF THERMAL PERFORMANCE IN CONVENTIONAL AND PARABOLIC PLATE FIN HEAT SINKS

Abstract

The present work investigates the heat transfer performance of conventional flat plate and innovative parabolic flat plate heat sink. The investigation is conducted by considering the impact of different heat inputs (25W, 50W, 75W and 100W) and orientations (0°, 30°, 60° and 90°). The study analyses the heat transfer coefficient (h) as key performance metric using precise numerical simulations. In order to validate the simulation results against empirical benchmarks, the study presents computational fluid dynamics (CFD), which is subsequently followed by regression analysis. The results suggest a significant enhancement in performance metrics for the parabolic heat sink, as seen by the greater heat transfer coefficients observed at a 90° orientation in comparison to the flat plate configuration. In particular, the parabolic flat plate demonstrated a peak heat transfer coefficient of 14.27 W/m²K when subjected to a heat input of 100 W, surpassing the flat plate's heat transfer coefficient of 11.77 W/m²K under identical circumstances.