Study on a pulse tube cryocooler using gas mixture as its working fluid
✍ Scribed by C.M Gao; Y.L He; Z.Q Chen
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 267 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
✦ Synopsis
In order to improve the performance of a one-stage pulse tube cryocooler, gas mixtures are used for comparison, which have been used in other cryocoolers. A mixture of hydrogen and helium was investigated in this study. When the structure of the pulse tube is the same as mentioned in [C. Wang, P.Y. Wu, Zh.Q. Chen, Numerical modeling of an ori®ce pulse tube cryocooler, Cryogenics 32 (1992) 785] and the working conditions are: frequency 15 Hz, average pressure 1.1 MPa, hot end temperature 300 K and cold end temperature 80 K, it has been found that there are optimal molar percentage for the maximal cooling power and the maximalcoecient of performance (COP) of this cryocooler.