Dynamic and thermodynamic characteristics of the moving-coil linear compressor for the pulse tube cryocooler. Part A: Theoretical analyses and modeling
Dynamic and thermodynamic characteristics of the moving-coil linear compressor for the pulse tube cryocooler. Part A: Theoretical analyses and modeling
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DOI：
10.1016/j.ijrefrig.2015.12.019
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发表时间：
2016-09
期刊：
影响因子：
--
通讯作者：
H. Dang;Lei Zhang;J. Tan
中科院分区：
文献类型：
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作者：
H. Dang;Lei Zhang;J. Tan
对斯特林型脉管制冷机动圈式直线压缩机的动力学和热力学特性进行了理论分析和建模。推导了控制方程，发现φ和Δ帕雷是连接压缩机和脉管冷指的两个关键参数。提出了一种改进的ECA模型，用于研究冷指特性及其对φ、ΔP的影响。基于一个具体的案例进行了系统的模拟，以提供详细的解释与频率从30 Hz到100 Hz分别在60 K，80 K和100 K的理论分析。模拟分析了在上述温度下，φ、ΔP、I和θ 4个重要参数以及压缩机热力性能和制冷机冷却性能随频率的变化规律。模拟了压气机几何参数对η电机的影响。实验验证将在第B部分中给出。
Theoretical analyses and modeling are conducted on dynamic and thermodynamic characteristics of the moving-coil linear compressor in the Stirling-type pulse tube cryocooler. Governing equations are deduced, andφand ΔPare found to be the two key parameters connecting compressor to pulse tube cold finger. An improved ECA model is developed to investigate the cold finger characteristics and their influences onφ, ΔP. Systematic simulations based on a specific case are performed to provide elaborate explanations about the theoretical analyses with the frequency varying from 30 Hz to 100 Hz at 60 K, 80 K and 100 K, respectively. The variations of four important parameters ofφ, ΔP,Iandθ, and the compressor thermodynamic performances and the cryocooler cooling performances, with the frequency at above temperatures are simulated and analyzed, respectively. The effects of compressor geometrical parameters onηmotorare also simulated. The experimental verifications will be presented in Part B.