This paper presents the dynamic process simulation of a magnetic material regenerator with Er,Ni operating in the temperature range 30-4.5 K using a numerical method. The variable properties of Er,Ni and helium are taken into account in the model. The calculated dynamic temperature distributions are
Dynamic simulation of one-stage G-M refrigerator and comparison with experiment
β Scribed by W. Huang; P.Y. Wu; S.L. Hu; L. Zhang; Y.M. Zhout; L.H. Gong; G.B. Chen
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 386 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0011-2275
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β¦ Synopsis
In this paper a mathematical model of a one-stage G-M refrigerator has been made to simulate its dynamic performance. A set of governing equations has been solved by a numerical method. Some P-V diagrams under different refrigeration temperatures have been tested. The calculated results show good agreement with experiment, especially in the hot chamber. The greatest deviation in the cold chamber is about 11%.
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The purpose of this study is to investigate the quantitative relationship between the width of the glass transition, DT g , and glass fragility or activation energy for structural relaxation. The ultimate objective is the estimation of structural relaxation time as a function of temperature from the