Performance analysis of acceleration effect on paraffin melting in finned copper foam

Phase change material (PCM) has great potential in thermal control of aircraft electronic components because their excellent latent heat capacity. In the current work, a finned copper foam phase energy storage unit (PCESU) was fabricated using n-eicosane, 97.2% porosity and 0.8 mm fins. The effects four different heating power i.e. 40 W, 45 50 55 W corresponding to flux 0.4 W/cm2, 0.45 0.5 0.55 W/cm2 at centrifugal acceleration magnitudes, 0 g, 5 9 13 g with three directions on performance PCESU were experimentally studied systematic manner. Experimental results indicated that: (1) direction significant effect which can be improved for cases vertical opposite directions, whereas restrained case same direction. Under condition, average melting time are 15.19% 37.10% longer than that direction, respectively. temperature difference while is completed 95.12% higher average. (2) magnitude transfer determined significantly when applied. decreases increase along increases or Moreover, changing from have an obvious larger rate to13 g. (3) negatively correlated power, positively power. proposed two-dimensional (2D) simplified model helpful reveal physical mechanism PCESU.