The effect of thermal conductivity of thermoacoustic chiller plate stack on its steady-state temperature difference
In order to study the influence of the thermal conductivity of the stack on the temperature difference between the two ends of the stack under a given operating frequency,a numerical simulation method was used to set the excitation frequency to 200 Hz and the excitation amplitude to 3 mm under the condition of no load,and when the thermal conductivity of the stacked ma-terial was 2.23 W/(m·K),the temperature difference between the two ends of the plate stack was the largest,up to 24.05 K.The results show that there is an optimal thermal conductivity at a given excitation frequency,which maximizes the temperature difference between the two ends of the stack.The research results can provide a reference for the rational selection of laminated materials and the improvement of refrigeration effect.
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