通过不对称的p/n型脚的结构匹配设计,优化热电冷却器的性能
Wenjie Zhou1,2, Kaikai Pang2, Zongwei Zhang2
1Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China.
ACS applied materials & interfaces
|November 22, 2023
概括
通过调整横截面积比 (Ap/An) 来优化热电冷却器 (TEC) 脚的设计,可以将冷却功率密度提高5.4%. 这种新的方法改善了基于Bi2Te3的TEC的最大冷却温度差异.
科学领域:
- 材料科学 材料科学 材料科学
- 热力学是一种热力学.
- 固态物理 固态物理
背景情况:
- 商用热电冷却器 (TEC) 使用相同的p型和n型脚,由于材料特性不同,性能受到限制.
- 传统的TEC设计限制了冷却效率,因为在不同的腿部特性中具有均的电流密度.
研究的目的:
- 为p型和n型热电脚提供一种新的设计,以优化TEC性能.
- 调查优化横截面积比 (Ap/An) 对TEC效率和冷却能力的影响.
主要方法:
- 材料冷却性能的理论计算.
- 用有限元模拟来评估热电冷却器的性能.
- 模拟结果的实验验证.
主要成果:
- 优化横截面积比 (Ap/An) 提高了结构匹配和优点 (Z) 的数字.
- 通过优化腿部面积比率,冷却功率密度增加了5.4%.
- 优化的TEC设计在特定温度下增加了3.3K和2.7K的冷却温度差异,性能系数保持不变.
结论:
- 优化热电脚的横截面积比对于最大限度地提高TEC性能至关重要.
- 拟议的设计策略为增强基于Bi2Te3的TEC的冷却功率和温度差异提供了一条途径.
- 这项研究为未来设计和开发高效的热电冷却设备提供了宝贵的见解.
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