Experimental study of paper drying with direct-contact ultrasound mechanism
Experimental study of paper drying with direct-contact ultrasound mechanism
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DOI：
10.1080/07373937.2022.2150635
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发表时间：
2022-12
影响因子：
3.3
通讯作者：
Zahra Noori O’Connor;J. Yagoobi;B. Tilley
中科院分区：
文献类型：
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作者：
Zahra Noori O’Connor;J. Yagoobi;B. Tilley
摘要采用超声波干燥技术对纸张干燥进行了系统的研究。它的优点包括更高的能效，更低的干燥时间和温度，产品质量的提高，被认为是一项绿色技术。采用23个析因设计的实验设计，研究了初始含水率、厚度和打浆条件对不同类型纸浆(阔叶木和针叶木)的影响。方差分析表明，在所研究的参数范围内，厚度对超声波干燥时间的影响最大，其次是初始含水率。此外，利用线性回归模型，给出了总干燥时间的关系式。结果表明，当样品含水率较高、厚度较大时，超声波干燥效果较好。这些结果与样品的结构特征有关，如孔隙率、孔分布和表面粗糙度。
Abstract A systematic-study is conducted using an innovative technology for paper drying by applying ultrasound mechanism. The advantages include greater energy efficiency, lower drying time and temperature, improvement of the product quality, and it is considered a green technology. The effects of initial moisture content, thickness, and refining condition are studied for different types of pulps (hardwood and softwood) using 23 factorial design of experiments. Analysis of Variance show that in the range of the studied parameters, thickness has the maximum effect on ultrasonic drying time followed by the initial moisture content. In addition, using a linear regression model, a relationships for the total time of drying is provided. The results confirmed that ultrasonic drying is more efficient at higher moisture content and higher thickness of the sample. These results are related to the structural characteristic of the samples such as porosity, pore distribution, and surface roughness.