Numerical Investigation of a Novel Phase Change Material-Based Heat Sink with Different Configurations

The challenge of inadequate solidification or slow energy release rates in phase change material (PCM) heat sinks has limited their application across various scenarios. This study aims to enhance both energy release and storage rates by introducing innovative PCM heat sink designs featuring different configurations. The configurations studied as part of the analysis are cylinder, square bar, and cones shaped fins configurations. It allows us to determine the optimal design to maximize energy storage in both latent and sensible forms, thereby improving the efficiency of the energy storage system and subsequent release cycles. This analysis adopts a holistic approach, contrasting with earlier studies that often concentrate on a single factor. A numerical analysis is conducted to explore different parameters influencing the optimal setup for enhancing heat sink performance. Results indicate that adjustments in the shapes of fins lead to variations in both the critical temperature of the heat source and the duration needed for the system to return to its initial state. The cone shaped fins achieved lower critical temperature of 300 K and were most ineffective. Square bar shaped fin performed slightly better than cylinder fin but with a higher critical temperature of 305 K vs 303 K in cylinder fin configuration.