Parametric Study on Performance of Inertance Pulse Tube Cryocooler

  • Lee, K.H. (Mechanical Engineering Department, Sunchon National University) ;
  • Rhee, J. (Korea Aerospace Research Institute, Daejeon) ;
  • Kim, J.S. (Department of Aerospace Engineering, Chosun University)
  • Received : 2014.02.20
  • Accepted : 2014.06.16
  • Published : 2014.06.30


The design parameters to affect the cooling capacity of a cryocooler were examined with the application of numerical modeling to optimize an inertance pulse tube cryocooler. This modeling includes the regenerator, pulse tube, inertance tube, gas reservoir, and heat exchangers. One-dimensional modeling on strings of acoustic and thermoacoustic elements was applied to compare the design parameters. The diameter and length of the pulse tube can significantly affect the cooling capacity and efficiency. The aftercooler was optimized by maintaining a certain size. The efficiency also improved as the length of inertance tube and volume of gas reservoir are increased. It was confirmed that effective design parameters are critical to the performance of an inertance pulse tube cryocooler considering the comparison of the dimensions of each part to optimize its cooling power and efficiency.


Supported by : Korea Aerospace Research Institute


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