In this work, a method is presented for the approximation of dynamic processes. Dynamic inputs of membrane distillation can be approximated by a regression equation as several steady state steps after each other. A regression equation of the flux was developed based on a validated steady state model and a wide range of process parameters. The regression equation of the flux is then used to approximate a dynamic process. To test the approximation on a dynamic process, a new test setup was developed to provide quick changes to the temperatures or flow. It was found that the approximation corresponds well to the test results. While this paper only approximates the flux, the method presented in this paper can also be used to approximate other variables. The presented method is also applied to the concentration of aqueous sucrose solutions with an AGMD module with oleophobic and hydrophobic properties. Three semi batch tests were done. The approximation corresponds well to the test results. A maximum Brix concentration of 56.9 was reached in the tests.

在这项工作中，提出了一种动态过程的近似方法。膜蒸馏的动态输入可以通过回归方程近似为彼此之间的几个稳态步骤。基于经过验证的稳态模型和广泛的工艺参数，开发了助焊剂的回归方程。通量的回归方程然后用于​​近似动态过程。为了测试动态过程中的近似值，开发了一种新的测试设置以快速更改温度或流量。发现近似值与测试结果非常吻合。虽然本文仅对通量进行了近似，但本文中介绍的方法也可以用于近似其他变量。所提出的方法也适用于具有具有疏油和疏水性质的AGMD模块的蔗糖水溶液的浓缩。完成了三个半批测试。近似值与测试结果非常吻合。试验中最高糖度达到56.9。