We report a two-unit thermoacoustic refrigerator driven by medium-and low-grade thermal
energy for the room-temperature cooling. Carefully designed slim tubes and cavities were …

Energy crisis and environmental pollution have become global issues. This study reported a
heat-driven combined cooling and heating system based on thermoacoustic technology …

Liquid-helium temperature is a widely used working temperature in low-temperature
physics. At present, liquid-helium or low-frequency cryocoolers, including Gifford Mahon …

High-frequency pulse tube cryocooler (HPTC) has advantages of compact structure, low
vibration, high reliability and long operation time. In this study, Theoretical analysis and …

A looped-cascade thermoacoustic driven cryocooler is proposed and theoretically studied in
this paper. This system is capable of achieving ideal acoustic fields by employing different …

Gas-bearing pulse tube cryocoolers (PTCs) are efficient and durable for the elimination of
supporting and reciprocating parts of the compressor components. Compared with the leaf …

The helium sorption cooler plays an important role in both ground and space application
because it does not require a magnetic field and is not dependent on gravity. At present, one …

High-frequency pulse tube refrigerator (HPTR) has significant advantages in terms of
compactness and high reliability, but it is difficult to obtain very low cooling temperatures. To …

In recent decades, the demands for cooling requirements near liquid-helium temperature
ranges, ie, 4 K, are becoming urgent for the increasing developments in frontier science of …

Recent breakthroughs in space science have motivated space exploration programs in
many countries including China. Cryocoolers, which provide the mandatory low-temperature …