Affiliation:
1. College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2. College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Abstract
The implementation of heat sinks in high-power pulse electronic devices within hypersonic aircraft cabins has been facilitated by the emergence of innovative phase change materials (PCMs) characterized by excellent thermal conductivity and high latent heat. In this study, a representative material, layered porous media filled with paraffin wax, was utilized, and a three-dimensional numerical model based on the enthalpy-porosity approach was employed. A thermal response research was conducted on the Phase Change Heat Exchange Unit with Layered Porous Media (PCHEU-LPM) with different cooling methods. The results indicate that water cooling proved to be suitable for the PCHEU-LPM with a heat flux of 50,000 W/m2. Additionally, parametric studies were performed to determine the optimal cooling conditions, considering the inlet temperature and velocity of the cooling flow. The results revealed that the most suitable conditions were strongly influenced by the coolant inlet parameters, along with the position of the PCM interface. Finally, the identification of the parameter combination that minimizes temperature fluctuations was achieved through the Response Surface Analysis method (RSA). Subsequent verification through simulation further reinforced the reliability of the proposed optimal parameters.
Funder
National Natural Science Foundation of China
Aeronautical Science Foundation of China
Natural Science Foundation of Jiangsu Province, China
Advanced Jet Propulsion Innovation
Reference20 articles.
1. Research Progress of Aerodynamic Heat Dissipation, Transport and Conversion Technologies of Hypersonic Vehicles;Gou;Yuhang Xuebao/J. Astronaut.,2022
2. Technologies for Thermal Protection Systems Applied on Re-Usable Launcher;Behrens;Acta Astronaut.,2004
3. Theoretical Prediction of Thermal Conductivity for Thermal Protection Systems;Gori;Appl. Therm. Eng.,2012
4. Mehta, J., Charneski, J., and Wells, P. (August, January 30). Unmanned Aerial Systems (UAS) Thermal Management Needs, Current Status, and Future Innovations. Proceedings of the 10th International Energy Conversion Engineering Conference, Atlanta, GA, USA.
5. Balland, S., Fernandez Villace, V., and Steelant, J. (2015, January 6–9). Thermal and Energy Management for Hypersonic Cruise Vehicles—Cycle Analysis. Proceedings of the 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, Glasgow, UK.