Energy, cilt.313, 2024 (SCI-Expanded)
The ternary periodic minimal surfaces-phase change materials (TPMS-PCM) composites were produced using infiltration technique. First, paraffin wax (PW) was melted, and aluminum nitride (AlN) particles were mixed in ratios ranging from 0 to 10 wt%. The melt mixture then infiltrated the 3D-printed Gyroid TPMS structure in a vibratory shaker environment. Therefore, in this study, it was aimed to discover a composite thermal management system with TPMS. In addition to the experimental tests of the materials for the system design, computational fluid dynamics (CFD) analyses of the battery thermal management (BTM) were performed using the TPMS-PCM composite for cooling the battery. The changes in the thermal conductivity of the paraffin wax and the composite were investigated by adding different amounts of aluminum nitride into the paraffin wax. With the addition of 5% AlN by weight ratio, a thermal conductivity value of 0.2612 W/mK was obtained at room temperature for the TPMS-PW composite material, corresponding to a 68% increase in thermal conductivity compared to the pure PW. Density, specific heat capacity, and thermal conductivity coefficient measurements were performed. As a result, the proposed composite thermal management system improved the cooling performance of traditional thermal management systems and guided efficient battery thermal management.