基于泡沫金属相变材料的间歇大功率激光器热管理

Metal foam-filled PCMs (phase change materials) were used to dissipate heat from electronic devices with the aim of addressing the overheating issue in intermittent high-power lasers. Efficient thermal management was achieved by incorporating PCMs into foam metals. To validate the feasibility of the approach, simulations were carried out using a computational platform, and the model was verified against experimental results from Amin Faranehnia et al. The results indicate a temperature variation of only 0.001 4%, which demonstrates the high reliability of the simulation model. Furthermore, parametric analyses show that the choice of foam metal material significantly affects the cooling performance. Foam copper exhibits the best heat dissipation effect, reducing the temperature by 26.1% and 25.1% compared to nanoparticles with volume fraction of 0.2% and 2%, respectively. The influence of ambient temperature is relatively minor, as higher ambient temperatures only slightly reduce heat exchange. Finally, the porosity of the foam metal has a notable impact on temperature control. As porosity increases from 0.7 to 0.9, the temperature rises from 47.59 °C to 54.7°C, an increase of 14.9%.