通过数值模拟验证多阶段薄膜热电器件的实验冷却性能
Yu Ning1, Longzhou Li1, Ping Wei1
1State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
Micromachines
|June 27, 2025
概括
热电薄膜冷却器件对电子产品有希望,但表现不佳. 诸如基板和接触电阻等实用因素显著降低了冷却效率,阻碍了它们的应用.
科学领域:
- 材料科学 材料科学 材料科学
- 热管理 热管理
- 纳米技术 纳米技术
背景情况:
- 平面内热电薄膜冷却装置为电子产品中先进的热管理提供了潜力.
- 目前的冷却性能远远落后于散装设备,这给设计带来了挑战.
研究的目的:
- 以数值分析单脚和级联薄膜热电器件的冷却性能.
- 调查输入电流,环境,基板和接触电阻对设备性能的影响.
主要方法:
- 用有限元法 (FEM) 模拟来进行数值分析.
- 在理想条件和实际条件下,对实验数据进行了模拟验证.
主要成果:
- 在理想条件下 (真空,没有基板/接触电阻),模拟冷却 (105.4 K) 与理论预测 (96.6 K) 非常接近.
- 在实际条件下 (大气,基板,接触电阻),模拟冷却 (2.1 K) 与实验结果 (1.1 K) 保持一致.
结论:
- 基板效应,接触电阻和操作环境严重降低了薄膜热电器件的冷却性能.
- 优化设备设计和参数对于克服现实应用中的性能限制至关重要.
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