77K微型气动斯特林制冷机的排出器设计分析
Design Analysis of the Displacer in a 77K Miniature Pneumatic Stirling Cryocooler
DOI: 10.12677/mos.2025.141018, PDF,   
作者: 刘庚辰*, 耿昕辰, 童仁超：上海海洋大学食品学院，上海
关键词: 斯特林制冷机；频率；损失；排出器；Stirling Cooler； Frequency； Losses； Displacer
摘要: 本文研究了77K微型气动斯特林制冷机的排出器设计，分析了排出器结构参数对制冷机性能的影响。通过建立一维数值模型，从能量损失的角度出发，详细分析了回热器参数对制冷效率和内部能量损失的影响。研究结果表明，排出器的设计和优化是提高斯特林制冷机效率和性能的关键因素之一。通过优化膨胀活塞参数和回热器直径，可以显著提高制冷机的制冷效率。此外，回热器长度的变化对制冷效率也有显著影响。通过数值仿真，确定了最优的回热器直径和长度，为微型气动斯特林制冷机的设计提供了理论依据和指导。
Abstract: This paper investigates the design of the displacer in a 77K miniature pneumatic Stirling cryocooler, analyzing the impact of the displacer’s structural parameters on the performance of the cryocooler. By establishing a one-dimensional numerical model and focusing on energy losses, a detailed analysis of the impact of regenerator parameters on cooling efficiency and internal energy losses is conducted. The research results indicate that the design and optimization of the displacer are one of the key factors in improving the efficiency and performance of the Stirling cryocooler. By optimizing the expansion piston parameters and the diameter of the regenerator, the cooling efficiency of the cryocooler can be significantly improved. Additionally, changes in the length of the regenerator also have a significant impact on cooling efficiency. Through numerical simulation, the optimal diameter and length of the regenerator are determined, providing a theoretical basis and guidance for the design of miniature pneumatic Stirling cryocoolers.
文章引用：刘庚辰, 耿昕辰, 童仁超. 77K微型气动斯特林制冷机的排出器设计分析[J]. 建模与仿真, 2025, 14(1): 177-186. https://doi.org/10.12677/mos.2025.141018

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