Development of a thermodynamic model for a cold cycle 3He-4He dilution refrigerator

Mueller, Bryant; Miller, Franklin G.

doi:10.1016/j.cryogenics.2016.08.004

Cited by 6 publications

(1 citation statement)

References 11 publications

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“…Dilution refrigerator, as a cryogenic technology which can obtain temperature below 100mK, has been applied in various fields such as aerospace and energy [1][2][3][4]. In order to fathom the mechanism of dilution process and optimize the design of dilution refrigerator, many analyses and verifications on the properties of 3 He- 4 He mixtures and thermodynamic process of dilution unit were studied [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Process and Analysis of Dilution Refrigerator

Zheng

Wei

Pan

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Thermodynamic analysis is essential for not only guiding the design of refrigerator, but also studying its operation mechanism. As the core component, the dilution unit plays an important role in deciding the performance of dilution refrigerator. In this study, a coupled thermodynamic model is established by analyzing each component separately for improving the operation of dilution refrigerator. And an optimization calculation based on that model is carried out to obtain some meaningful results on the dilution unit design. The optimal flow rate of the dilution refrigerator under different working conditions are pointed out. By considering the effect of viscous heat on the performance of the heat exchanger, the applicable conditions of the continuous heat exchanger and the methods to overcome the viscous heat are given.

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