动态伪平衡水分的实验性确定:干燥过程的实际极限
Alexis Manuel Faneite Noguera1,2, Ignacio Angós Iturgaiz3
1Laboratory of Chemical Engineering, Faculty of Engineering, School of Chemical Engineering, University of Zulia (LUZ), Guajira Avenue, Campus "Dr. Antonio Borjas Romero", Maracaibo 4001, Venezuela.
MethodsX
|November 6, 2023
概括
工业干燥机的设计需要准确的模型. 这项研究确定了一个动态的伪平衡湿度含量 (X),标志着干燥动态的结束,改善了干燥机的模拟和设计.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 热力学是一种热力学.
- 材料科学 是一种材料科学.
背景情况:
- 工业干燥机的设计依赖于质量,能量和动量平衡.
- 现有的模型往往过于简化了干燥的最后阶段,假设即时的热力学平衡.
- 这种简化可能导致干燥机尺寸和操作的预测不准确.
研究的目的:
- 引入动态伪平衡湿度含量 (X) 的概念.
- 介绍一种用于实验性确定X的方法.
- 为改进干燥机建模,建议使用包含X的实用湿度比.
主要方法:
- 对各种材料的干燥曲线的实验性确定.
- 干燥阶段的分析:动力,过渡和平衡.
- 确定过渡点来定义X.
主要成果:
- 干燥过程在达到热力学平衡之前表现出明显的过渡阶段.
- 动态伪平衡湿度含量 (X) 准确地划分了动力干燥阶段的结束.
- 在实际的湿度比率中使用X可以提高模型预测的准确性,特别是在较低的温度下.
结论:
- 动态伪平衡湿度含量 (X) 是理解干燥动力学的关键参数.
- 精确的干燥机模拟和设计需要包括这个过渡阶段.
- 拟议的实用湿度比提高了干燥模型的预测能力,防止低估干燥机尺寸和时间.
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