Stirling-type pulse tube refrigerator with slit-type heat exchangers for HTS superconducting motor

Ki, Taekyung; Jeong, Sangkwon

doi:10.1016/j.cryogenics.2010.10.004

Cited by 17 publications

(2 citation statements)

References 7 publications

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“…In recent years, many advances have been reported in cryogenics, particularly for cryocoolers, that have led to an expansion of their potential applications, and even to new application areas, such as in superconducting devices [1,2], IR sensors [3][4][5], compact magnetic resonance magnets [6], and various medical and space applications [7][8][9]. Among the cryocoolers reported, pulse tube coolers (PTCs) are of special interest.…”

Section: Introductionmentioning

confidence: 99%

Pulse Tube Cryocooler: Phasor Analysis and One-Dimensional Numerical Simulation

2020

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An analysis of the detailed operation for the tube element is proposed for an orifice pulse tube cryocooler. This is achieved through phasor analysis using basic thermodynamic relations to estimate the approximated cooling power associated with this machine. Moreover, the effect of the phase shift angle is illustrated by forming an analogy between the phase shift mechanism and a series RLC circuit model. Next, a one-dimensional model based on the conservation equations of mass and energy is presented; the reduced model is solved numerically, for the temperature and velocity of the gas along the tube, to determine the mass flow and time-averaged enthalpy flows at the cold and hot ends of the tube. The findings from the one-dimensional analysis are compared with the phasor analysis results and validated by comparison with similar studies in the literature.

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Section: Introductionmentioning

confidence: 99%

Pulse Tube Cryocooler: Phasor Analysis and One-Dimensional Numerical Simulation

2020

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“…In 2011, they then did experiments with slit-type heat exchangers and make comparison with three-dimensional CFD simulation, but most of their studies focused on aftercoolers. [17]. In 2012, Yu et al [18] used the parallel-plate structure cold end heat exchanger on a 300 Hz pulse tube cooler, and showed that the cooling power at 80 K increased to more than 1 W, compared with about 0.2 W obtained with a simple copper housing.…”

Section: Introductionmentioning

confidence: 99%