A new model for the oscillating flow combined with pulsating pressure in cryocooler
regenerators is developed to overcome inaccuracy of the conventional flow model based on …

The results from an extensive parametric study using the most recent version of the
regenerator design software tool, REGEN3. 3, are presented. By compiling the results from …

As one of the key component in the pulse tube cryocooler (PTC), a regenerator needs to
reduce losses for performance improvement. Thus, a good regenerator material should have …

In this study the phenomena of compressible flow and heat transfer in porous media are
modeled based on fundamental principles. The conservation equations for the two phases …

Prototypical cryocooler regenerators were assembled with several common regenerator
filler materials and were tested under periodic helium flow at room and cryogenic …

Stirling-type pulse tube cryocoolers (SPTCs) working at liquid-helium temperatures are
appealing in space applications because of their promising advantages such as high …

Pulse tube cryocoolers (PTCs) represent a significant enabling technology for infrared
detectors in space applications. A PTC can be efficiently operated by optimizing the …

Over the past few decades, the pulse-tube cryocooler has advanced from a curiosity to one
of the most attractive systems for providing reliable cryogenic cooling; it is now used in …

ABSTRACT A single-stage Stirling-type pulse tube cryocooler (PTC) has recently been
designed using the REGEN modeling software developed at NIST Boulder. REGEN 3.2. The …

Cryogenics is the study of low temperature phenomena below 123 K, the temperature below
which most commonly occuring gases liquefy. The term cryogenics is derived from the Greek …