Understanding and Controlling Wall Deposition in Spray Dryers via Experimental and Computational Fluid Dynamics (CFD) Studies

在使用喷雾干燥机生产奶粉和其他消费品（如洗涤剂）时，一个关键问题是发生内壁粉末沉积，导致产品热降解和潜在的火灾危险。然而，在喷雾干燥机中没有应用任何基本理论来控制这一过程。拟议的项目将使用最先进的实验和计算技术来获得对这一现象的基本理解，并将开发一个经过验证的壁面沉积模型，以预测这一过程发生的时间和程度，从而提供更高的吞吐量和/或更高效的系统。

A key problem in operating spray dryers for producing milk powders and other consumer products, such as detergents, is the occurrence of internal wall deposits of powder, leading to thermal degradation of the products and potential fire hazards. However, no fundamental theory has been applied in spray dryers to allow this process to be controlled. The proposed project will use state-of-the-art experimental and computational techniques to gain a fundamental understanding of this phenomenon and will develop a validated wall deposition model to predict when and to what extent this process occurs, to give higher throughputs and/or more efficient systems.