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Effect of phase control on orifice and double-inlet pulse tube refrigerators.

[In Japanese. / En japonais.]

Author(s) : INADA T., NISHIO S., OHTANI Y.

Type of article: Article

Summary

In the paper, instantaneous mass flow rates of the gas through the orifice and the bypass valves were measured by hot-wire anemometers to estimate the phase shift. The experimental results indicate that the phase shift can be over 90 deg in a double-inlet pulse-tube refrigerator, while it is below 90 deg in an orifice-pulse tube refrigerator. These results also show that not only the phase shift but also the average mass flow rate at the hot end of the pulse tube must be optimized to reach the minimum temperature. Further, numerical simulation based on linearized thermoacoustic theory was conducted to estimate the effects of the average mass flow rate and the phase shift. The calculated results show that the thermoacoustic theory may be applied to estimate the performance of pulse-tube refirigerators.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1996-3213
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 30 - n. 10
  • Publication date: 1995
  • Document available for consultation in the library of the IIR headquarters only.

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