Numerical Analysis and Experimental Verification of Multi-Bypass Pulse Tube Refrigerators

1996 ◽  
pp. 1389-1394 ◽  
Author(s):  
Chao Wang ◽  
Jinghuei Cai ◽  
Yuan Zhou ◽  
Suqing Wang
Keyword(s):  
Numerical Analysis ◽  
Experimental Verification ◽  
Pulse Tube ◽  
Pulse Tube Refrigerators

scholarly journals Experimental Investigation and Modeling of Inertance Tubes

2005 ◽  
Vol 127 (5) ◽  
pp. 1029-1037 ◽  
Author(s):  
L. O. Schunk ◽  
G. F. Nellis ◽  
J. M. Pfotenhauer
Keyword(s):  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Acoustic Power ◽  
Operating Conditions ◽  
Thermodynamic Efficiency ◽  
Pulse Tube ◽  
Design Charts ◽  
Wide Range ◽  
Pulse Tube Refrigerators

Growing interest in larger scale pulse tubes has focused attention on optimizing their thermodynamic efficiency. For Stirling-type pulse tubes, the performance is governed by the phase difference between the pressure and mass flow, a characteristic that can be conveniently adjusted through the use of inertance tubes. In this paper we present a model in which the inertance tube is divided into a large number of increments; each increment is represented by a resistance, compliance, and inertance. This model can include local variations along the inertance tube and is capable of predicting pressure, mass flow rate, and the phase between these quantities at any location in the inertance tube as well as in the attached reservoir. The model is verified through careful comparison with those quantities that can be easily and reliably measured; these include the pressure variations along the length of the inertance tube and the mass flow rate into the reservoir. These experimental quantities are shown to be in good agreement with the model’s predictions over a wide range of operating conditions. Design charts are subsequently generated using the model and are presented for various operating conditions in order to facilitate the design of inertance tubes for pulse tube refrigerators. These design charts enable the pulse tube designer to select an inertance tube geometry that achieves a desired phase shift for a given level of acoustic power.

scholarly journals Thermoacoustic Cryocooler. Visualization Study of Flow Behavior in Pulse Tube Refrigerators.

1998 ◽  
Vol 33 (4) ◽  
pp. 249-257 ◽  
Author(s):  
Masao SHIRAISHI ◽  
Nobuhiko NAKAMURA ◽  
Masahide MURAKAMI ◽  
Akihiro NAKANO
Keyword(s):  
Flow Behavior ◽  
Pulse Tube ◽  
Pulse Tube Refrigerators

Pulse Tube Refrigerators

1995 ◽  
pp. 195-203
Author(s):  
A. Ravex ◽  
L. Duband ◽  
P. Rolland
Keyword(s):  
Pulse Tube ◽  
Pulse Tube Refrigerators

Counterflow pulse-tube refrigerators

2002 ◽  
Author(s):  
A. T. A. M. de Waele
Keyword(s):  
Pulse Tube ◽  
Pulse Tube Refrigerators
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