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Xu Songlin; WANG Huiyuan; XU Shimin
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许松林; 王惠嫒; 徐世民
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Abstract: From the measurement of liquid flow field on a large plate by a hot-film anemometer, three different regions on the large plate were presented, including a liquid circulation area near the inlet down-comer, a region with very slow moving or stagnant liquid on the side of the tray and an active flow region at the center of the plate. According to the contribution of the three regions, the tray efficiency for large plates was proposed. The prediction plate efficiency by the present model are compared with the experimental data in the literature and those calculated by other models. It is shown that the present model is more accurate for prediction of efficiency of large plates, and the calculation is simpler.
Key words: plate efficiency, large plate, liquid flow field
摘要: From the measurement of liquid flow field on a large plate by a hot-film anemometer, three different regions on the large plate were presented, including a liquid circulation area near the inlet down-comer, a region with very slow moving or stagnant liquid on the side of the tray and an active flow region at the center of the plate. According to the contribution of the three regions, the tray efficiency for large plates was proposed. The prediction plate efficiency by the present model are compared with the experimental data in the literature and those calculated by other models. It is shown that the present model is more accurate for prediction of efficiency of large plates, and the calculation is simpler.
关键词: 大型塔板;作业效率;区域贡献法;化工设备
Xu ,Songlin, WANG ,Huiyuan, XU ,Shimin. Local Contribution Method for Efficiency of Large Platest[J]. .
许松林, 王惠嫒, 徐世民. 计算大型塔板效率的区域贡献法[J]. CIESC Journal.
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https://hgxb.cip.com.cn/EN/Y2005/V13/I4/552