With the development of space technology, the infrared detectors have urgent demands on the high capacity cryocooler at 80 K. Aiming at improving the cooling power, a high capacity coaxial pulse tube cryocooler model with the Sage is built, and the size of the regenerator, pulse tube and the combinations of inertance tubes are optimized. Then, an entire pulse tube cryocooler is designed, manufactured and tested. And it turns out to be that the experimental results are very close to the analytical results. At present, this coaxial pulse tube cryocooler is able to provide cooling power of 13 W at 80 K with the input electrical power of 300 W, and achieves around 11.9% of Carnot efficiency at 80 K.The engineering prototype has been developed for a space program.
WANG Nailiang
,
ZHAO Miguang
,
CHEN Houlei
,
LIANG Jingtao
,
CAI Jinghui
. Simulation and Experimental Verification of a 13 W@80 K High Capacity Pulse Tube Cryocooler to be Used in Space[J]. Journal of Mechanical Engineering, 2018
, 54(6)
: 175
-181
.
DOI: 10.3901/JME.2018.06.175
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