The Proceedings of the Symposium on Stirlling Cycle
Online ISSN : 2424-2926
2001.5
Session ID : D04
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D04 Optimization of the cooling power in a GM refrigerator by adjusting the phase angle between pressure and displacement oscillations
Shigeyuki SUNAHARATetsushi BIWAUichiro MIZUTANI
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
In this paper, the heat exchange process between the working gas and the regenerator materials is examined in the second-stage GM refrigerator. The temperature dependence of the cooling power is measured as a function of the phase angle between pressure and displacement oscillations of the working gas. It is found that the optimum phase angle maximizing the cooling power at a given temperature dramatically increases with decreasing temperature particular below 20 K. This behavior represents that the importance of the phase angle in order to increase the cooling power in the low temperature region.
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© 2001 The Japan Society of Mechanical Engineers
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