嵌入式冷却的最佳热点-冷却液距离,包括热散布,尺寸和接口效应
1Nantes Université, Laboratoire de thermique et énergie de Nantes, LTeN, F-44000 Nantes, France.
概括
优化化 (GaN) 电源设备的嵌入式冷却需要平衡热点-冷却剂距离与散热阻力. 这项研究确定了增强热性能的理想距离.
科学领域:
- 材料科学 材料科学 材料科学
- 热力工程是热力工程中的一个.
- 半导体物理 半导体物理
背景情况:
- 化 (GaN) 电源设备因集中热源而面临热挑战.
- 嵌入式冷却集成流体结构,以减少热点-冷却剂距离.
- 关于降低这种距离提高性能的传统假设受到热传播阻力的挑战.
研究的目的:
- 为了确定GaN电源设备的最佳热点-冷却液距离.
- 研究各种配置参数对热性能的影响.
- 开发一种用于估计最佳距离的方法.
主要方法:
- 综合分析热传播模型,尺寸依赖的有效导热模型和热边界电阻的扩散不匹配模型.
- 总体热阻的成本效益计算.
- 差异分析 (ANOVA) 用于确定显著参数.
主要成果:
- 随着装置厚度的减少,散热阻力会增加.
- 确定了影响最佳热点-冷却液距离的关键参数.
- 根据关键参数开发了用于估计最佳距离的相关性.
结论:
- 最佳的热点-冷却液距离对于GaN电源设备的热管理至关重要.
- 一个新的相关性为这个最佳距离提供了一个快速估计方法.
- 这项研究有助于设计更高效的GaN电源设备.
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