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首页> 外文期刊>International Journal of Heat and Mass Transfer >Nu and Sh correlations for LiCl solution and moist air in plate type dehumidifier
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Nu and Sh correlations for LiCl solution and moist air in plate type dehumidifier

机译：板式除湿机中LiCl溶液与湿空气的Nu和Sh相关性

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To cope with environmental pollution caused by rapid industrial development, international regulations such as the Montreal Protocol and the United Nations Framework Convention on Climate Change are becoming materialized day by day. As a result, interest in energy saving devices is increasing and studies are being concentrated on highly efficient refrigeration air conditioning systems. In this study, a desiccant cooling technology using a liquid desiccant of LiCl solution was researched. The plate was treated with hydrophilic coating and the wettability was improved by giving a groove shape. Consequently, a thin liquid film was maintained even with a small amount of desiccant solution, thereby increasing the stability of the liquid film and solving the scattering problem of the desiccant solution. In this study, it is found that the absorption rate increases with the increases of the liquid desiccant and air velocity and the air velocity has more significant effect on the absorption rate than the liquid desiccant solution flow. It is found that the absorption rate becomes higher with increasing the higher relative humidity and the concentration of liquid desiccant. The dehumidification effectiveness decreases greatly as the air velocity increases. Furthermore, it is concluded that the air velocity has the greatest effect on the improvement of the absorption rate and heat and mass transfer. In this experiment, Sh and Nu correlations of the air side and desiccant solution side with an error of ±25% were developed, respectively, and the absorption rate, dehumidification effectiveness and the experimental correlations were compared with other studies.
机译：为了应对快速工业发展引起的环境污染，《蒙特利尔议定书》和《联合国气候变化框架公约》等国际法规正在日趋具体化。结果，对节能装置的兴趣在增加，并且研究集中在高效的制冷空调系统上。在这项研究中，研究了一种使用液态LiCl溶液干燥剂的干燥剂冷却技术。用亲水性涂层处理该板，并且通过给出凹槽形状来改善润湿性。因此，即使使用少量的干燥剂溶液也能保持薄的液体膜，从而增加了液体膜的稳定性并解决了干燥剂溶液的散射问题。在这项研究中，发现吸收率随液体干燥剂和空气速度的增加而增加，并且空气速度比液体干燥剂溶液的流动对吸收率的影响更大。发现随着较高的相对湿度和液体干燥剂的浓度增加，吸收率变得更高。随着空气速度的增加，除湿效果大大降低。此外，可以得出结论，空气速度对提高吸收率和传热传质的影响最大。在该实验中，分别建立了空气侧和干燥剂溶液侧的Sh和Nu相关性，其误差为±25％，并将吸收率，除湿效果和实验相关性与其他研究进行了比较。

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