With the rapid development of the space mechanical refrigeration technology, the cooling efficiency of the space pulse tube cryocooler at the temperature of 80 K has reached 1 W/18 W (cooling power/input electric power). Considering the development of astronautic miniature satellites in China in the future, the Technical Institute of Physical and Chemistry, China Academy of Sciences, has carried out investigation on space miniature pulse tube cryocooler, and has obtained breakthrough achievements. At the cooling temperature of 80 K, the ratio of cooling power to the mass and the cooling efficiency of the miniature aerospace pulse tube cryocooler developed by Technical Institute of Physical and Chemistry are greater than 1.5 W/1 kg and 1 W/22.5 W respectively, and the designed life of the cooler is over 30 000 h. Besides, the cooler can be coupled with the medium wave infrared array detector whose area array is less than 320×256. This paper introduces the research and development process of the miniature aerospace pulse tube cryocooler of the Technical Institute of Physical and Chemistry, and presents the recent research results. In addition to acting as the cooling source for the medium wave infrared array detector, the cooler can be used as the assistant cooling source for thermal control and adsorption of redundant pollution gas of the load on board working at the temperature of 220 K.
TANG Qingjun
,
CHEN Houlei
,
LIANG Jingtao
,
CAI Jinghui
. Development of space miniature pulse tube cryocooler[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018
, 39(S1)
: 722321
-722321
.
DOI: 10.7527/S1000-6893.2018.22321
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