The objective for the research was to determine how the heat transfer and pressure drop characteristics changed in a stacked, wire-screen regenerator, if the screens which were used to construct the matrix were rolled to decrease their thickness, thereby reducing the volume of the regenerator. Reducing the "dead volume" for regenerative refrigeration cycles was the ultimate motivation for this research. The results show the compactness factor (j/sub H//f) is adversely affected by rolling. Flattening the screens by 15, 30, or 50%, does not cause a new mechanism for heat transfer to be introduced to the matrix, but it does increase the total pressure drop. Rolling the screens causes a decrease in both wetted surface area and pore size, hence, surface phenomena like heat transfer are reduced, but, the inertial pressure drop increases. The effectiveness of the regenerator is also reduced by rolling the screens.
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机译：该研究的目的是确定用于堆叠基质的筛网蓄热器的传热和压降特性如何变化，如果用于构造基质的筛网被轧制以减小其厚度，从而减小蓄热器的体积。减少再生制冷循环的“死体积”是本研究的最终动机。结果表明，压实度系数（j / sub H // f）受到轧制的不利影响。将滤网展平15％，30％或50％不会使新的传热机制引入基体，但会增加总压降。滚动筛网导致润湿的表面积和孔径减小，因此，减少了诸如热传递的表面现象，但是惯性压降增大。滚动筛网也会降低再生器的效率。
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