Abstract
This paper refers to experimental and analytical evaluation of the flow field in the workspace of a Stirling refrigerator. Recently, from the perspective of global environmental protection, Stirling cycle equipment that is high in efficiency and alleviates the burden on the global environment is increasingly gaining attention. To improve the efficiency of an actual Stirling refrigerator, it is necessary to understand fluid behavior under the oscillating flow condition in the regenerator and the heat exchanger. In particular, understanding the flow in the regenerator is required for the design of an active-type regenerator accompanied by change in the bulk density of heat storage material. The 3D-CFD approach is used to conduct a trial analysis of gas behavior in the workspace of a household Stirling refrigerator, and we have successfully ascertained the relevant basic gas flow characteristics, which are reported in this paper.
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