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The VM refrigerator with power being supplied by liquid nitrogen shows great potential for application below 10K. The 2D axisymmetric model refers to actual geometry under oscillating flow conditions is carried out using FLUENT software. The lowest temperature, the pressure in three cavities, the temperature profile along the regenerator is presented. The simulation results show good agreement with...
This paper will introduce our recent experimental results of cryogenic regenerator materials employed in Stirling-type one-stage pulse-tube refrigerator for the use at liquid hydrogen temperature. Thermal diffusion coefficient, according to which we choose the suitable regenerator materials, will prove to be a useful reference. We will also discuss the impact of resistance of sphere regenerator materials...
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