TY - JOUR
T1 - Advances on a cryogen-free Vuilleumier type pulse tube cryocooler
AU - Wang, Yanan
AU - Zhao, Yuejing
AU - Zhang, Yibing
AU - Wang, Xiaotao
AU - Vanapalli, Srinivas
AU - Dai, Wei
AU - Li, Haibing
AU - Luo, Ercang
PY - 2017/3/1
Y1 - 2017/3/1
N2 - This paper presents experimental results and numerical evaluation of a Vuilleumier (VM) type pulse tube cryocooler. The cryocooler consists of three main subsystems: a thermal compressor, a low temperature pulse tube cryocooler, and a Stirling type precooler. The thermal compressor, similar to that in a Vuilleumier cryocooler, is used to drive the low temperature stage pulse tube cryocooler. The Stirling type precooler is used to establish a temperature difference for the thermal compressor to generate pressure wave. A lowest no-load temperature of 15.1 K is obtained with a pressure ratio of 1.18, a working frequency of 3 Hz and an average pressure of 2.45 MPa. Numerical simulations have been performed to help the understanding of the system performance. With given experimental conditions, the simulation predicts a lowest temperature in reasonable agreement with the experimental result. Analyses show that there is a large discrepancy in the pre-cooling power between experiments and calculation, which requires further investigation.
AB - This paper presents experimental results and numerical evaluation of a Vuilleumier (VM) type pulse tube cryocooler. The cryocooler consists of three main subsystems: a thermal compressor, a low temperature pulse tube cryocooler, and a Stirling type precooler. The thermal compressor, similar to that in a Vuilleumier cryocooler, is used to drive the low temperature stage pulse tube cryocooler. The Stirling type precooler is used to establish a temperature difference for the thermal compressor to generate pressure wave. A lowest no-load temperature of 15.1 K is obtained with a pressure ratio of 1.18, a working frequency of 3 Hz and an average pressure of 2.45 MPa. Numerical simulations have been performed to help the understanding of the system performance. With given experimental conditions, the simulation predicts a lowest temperature in reasonable agreement with the experimental result. Analyses show that there is a large discrepancy in the pre-cooling power between experiments and calculation, which requires further investigation.
KW - Numerical simulations
KW - Thermal compressor
KW - Vuilleumier type pulse tube cryocooler
KW - 22/4 OA procedure
UR - http://www.scopus.com/inward/record.url?scp=85012079874&partnerID=8YFLogxK
U2 - 10.1016/j.cryogenics.2017.01.007
DO - 10.1016/j.cryogenics.2017.01.007
M3 - Article
AN - SCOPUS:85012079874
SN - 0011-2275
VL - 82
SP - 62
EP - 67
JO - Cryogenics
JF - Cryogenics
ER -