An improved numerical modelling technique for predicting the detailed performance and characteristics of an orifice pulse tube refrigerator has been developed. A variety of physical factors, such as gas flow friction, heat transfer in the heat exchanger and regenerator, real material properties etc.
Analysis of an orifice pulse tube refrigerator using the method of characteristics
โ Scribed by M.Y. Xu; Y.L. He; Z.Q. Chen
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 177 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0011-2275
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โฆ Synopsis
The behaviour of the various gas elements which enter the tube of a pulse tube refrigerator from its cold end has been analysed using the method of characteristics. It is found that, in an oriยฎce pulse tube refrigerator, the gas elements can be divided into three parts. The speciยฎc cooling capacity produced by the second part of the gas elements is the largest. If the total mass is ยฎxed, in order to improve the overall cooling capacity of an oriยฎce pulse tube refrigerator, the ratio of the gas elements in the second part should be increased, while those in the ยฎrst part and the third part should be decreased.
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