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Title of article :
Study on a pulse tube cryocooler using gas mixture as its working fluid Original Research Article
Author/Authors :
C.M Gao، نويسنده , , Y.L He، نويسنده , , Z.Q. Chen، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
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Abstract :
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 orifice 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 maximal-coefficient of performance (COP) of this cryocooler.
Keywords :
Gas mixture , Cryogenics , Pulse tube cryocooler , Refrigerators
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