The thermodynamics first law and second law analyses were performed for orifice type and double-inlet type pulse tube refrigerator (PTR), and the dynamic characteristics of the flow and heat transfer processes inside the PTR were revealed.

• 摘要采用热力学第一定律和第二定律分别对小孔型和双向进气型脉管制冷机进行了热力学分析，揭示了制冷机内部的流动和传热过程的动态特性。