Acoustic impedance measurements of pulse tube refrigerators

Complex acoustic impedance is determined in a prototype refrigerator that can mimic orifice-type, inertance-type, and double inlet-type pulse tube refrigerators from simultaneous measurements of pressure and velocity oscillations at the cold end. The impedance measurements revealed the means by which the oscillatory flow condition in the basic pulse tube refrigerator is improved by additional components such as a valve and a tank. The working mechanism of pulse tube refrigerators is explained based on an electrical circuit analogy.

[1]  Lawrence E. Kinsler,et al.  Fundamentals of acoustics , 1950 .

[2]  W. E. Gifford,et al.  Pulse-Tube Refrigeration , 1964 .

[3]  A. A. Tarasov,et al.  Low-Temperature Expansion Pulse Tubes , 1984 .

[4]  Chen Zhongqi,et al.  Double inlet pulse tube refrigerators : an important improvement , 1990 .

[5]  A. Tominaga.  Phase Controls for Pulse-Tube Refrigerator of the Third Generation , 1992 .

[6]  K. Kanao,et al.  A miniature pulse tube refrigerator for temperatures below 100K , 1994 .

[7]  Akira Tominaga,et al.  Thermodynamic aspects of thermoacoustic theory , 1995 .

[8]  Electronic Analog of Pulse-Tube Refrigerators , 1996 .

[9]  G. W. Swift,et al.  Use of inertance in orifice pulse tube refrigerators , 1997 .

[10]  D. Gedeon.  DC Gas Flows in Stirling and Pulse Tube Cryocoolers , 1997 .

[11]  Scott Backhaus,et al.  Acoustic recovery of lost power in pulse tube refrigerators , 1999 .

[12]  A. Hofmann,et al.  Phase shifting in pulse tube refrigerators , 1999 .

[13]  Thermoacoustic heat pumping effect in a Gifford–McMahon refrigerator , 2002 .

[14]  G. Swift.  Thermoacoustics: A Unifying Perspective for Some Engines and Refrigerators , 2017 .

[15]  H. Nomura,et al.  Measurement of the Q value of an acoustic resonator. , 2005, Physical review. E, Statistical, nonlinear, and soft matter physics.

[16]  C. Kato,et al.  Experimental evaluation of the acoustic properties of stacked-screen regenerators. , 2009, The Journal of the Acoustical Society of America.