TY - JOUR
T1 - Numerical Study of a 10 K Two Stage Pulse Tube Cryocooler with Precooling Inside the Pulse Tube
AU - Xiaomin, Pang
AU - Xiaotao, Wang
AU - Wei, Dai
AU - Jianyin, Hu
AU - Ercang, Luo
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - High efficiency cryocoolers working below 10 K have many applications such as cryo-pump, superconductor cooling and cryogenic electronics. This paper presents a thermally coupled two-stage pulse tube cryocooler system and its numeric analysis. The simulation results indicate that temperature distribution in the pulse tube has a significant impact on the system performance. So a precooling heat exchanger is put inside the second stage pulse tube for a deep investigation on its influence on the system performance. The influences of operating parameters such as precooling temperature, location of the precooling heat exchanger are discussed. Comparison of energy losses apparently show the advantages of the configuration which leads to an improvement on the efficiency. Finally, the cryocooler is predicted to be able to reach a relative Carnot efficiency of 10.7% at 10 K temperature.
AB - High efficiency cryocoolers working below 10 K have many applications such as cryo-pump, superconductor cooling and cryogenic electronics. This paper presents a thermally coupled two-stage pulse tube cryocooler system and its numeric analysis. The simulation results indicate that temperature distribution in the pulse tube has a significant impact on the system performance. So a precooling heat exchanger is put inside the second stage pulse tube for a deep investigation on its influence on the system performance. The influences of operating parameters such as precooling temperature, location of the precooling heat exchanger are discussed. Comparison of energy losses apparently show the advantages of the configuration which leads to an improvement on the efficiency. Finally, the cryocooler is predicted to be able to reach a relative Carnot efficiency of 10.7% at 10 K temperature.
UR - http://www.scopus.com/inward/record.url?scp=85016485971&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/171/1/012071
DO - 10.1088/1757-899X/171/1/012071
M3 - Conference article
AN - SCOPUS:85016485971
SN - 1757-8981
VL - 171
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012071
T2 - 26th International Cryogenic Engineering Conference, ICEC 2016 and International Cryogenic Materials Conference 2016, ICMC 2016
Y2 - 7 March 2016 through 11 March 2016
ER -