GOALI: Improvements Spray Drying Manufacturing Through Control of Drop Size Distributions

目标：通过控制液滴尺寸分布改进喷雾干燥制造

• 批准号: 0323622
• 负责人: Paul Sojka
• 金额: $ 38万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-15 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0323622&HistoricalAwards=false
• 关键词: GOALI; Improvements; Spray; Drying; Manufacturing

The goals of this Grant Opportunities for Academic Liaison with Industry (GOALI) project are: (1) to improve spray dryer manufacturing processes by developing fundamental models for the design of advanced spray units that produce well-controlled drop size distributions; and (2) to address a current issue of fundamental concern to the spray research community, determining whether the maximum entropy formalism (MEF) or the discrete probability function method (DPF) is most appropriate for predicting drop size distributions under typical industrial conditions. Spray drying is a critical materials processing technology used in areas as diverse as pharmaceutical processing, pigment manufacture, and production of fertilizers and foodstuffs. While the range of product specifications (i.e., particle sizes) differs in each case, the underlying goal is to produce products having a narrow distribution of sizes centered about a targeted mean. Currently, procedures for designing spray dryers are ad hoc and require considerable trial and error, especially when scaling up from pilot to full-scale production. To accomplish the goals of this project, the aim is to fabricate a unique micro-spray system having well-controlled and measurable initial and boundary conditions so that model inputs describing fluctuations in manufacturing process operating variables (liquid supply pressure and unsteadiness in the surrounding gas environment), manufacturing tolerances associated with the machinery itself (variations in atomizer channel width and height), and material property differences (arising from compositional changes) can be evaluated. This work will have broad impacts on education, environment, energy, and the economy. The PhD students will gain from extended industrial experience in corporate R&D and design/production environments. Wastage in the production of foodstuffs will be reduced, which lowers both energy costs and pollutant emissions. Spray drying production efficiency will be enhanced, which lowers costs, thereby strengthening the US competitive position. The end result will be immediately useful design tools for the food processing industry.

该学术联络人与行业（Goari）项目的赠款机会的目标是：（1）通过开发设计基本模型来设计高级喷雾单元的基本模型来改善喷雾干燥机制造工艺，这些模型可产生良好的控制液尺寸分布； （2）要解决喷雾研究界的当前问题，确定最大熵形式主义（MEF）或离散概率函数方法（DPF）是否最适合在典型的工业条件下预测跌落大小分布。 喷雾干燥是一种关键的材料加工技术，用于像药品加工，色素生产以及肥料和食品的生产一样多样化。 尽管在每种情况下，产品规格（即粒径）的范围不同，但基本目标是生产具有较大尺寸的较狭窄分布的产品，尺寸为目标平均值。 当前，设计喷雾器的程序是临时的，需要进行大量的试用和错误，尤其是在从飞行员到全尺度生产的扩展时。 为了实现该项目的目标，目的是建立一个具有良好控制和可测量的初始和边界条件的独特微喷式系统，以便描述模型的输入，以描述制造过程工作变量波动的波动（液体供应压力和周围气体环境中的液体供应压力和不稳定），与机械构成的构成和元素的构成范围以及元素的构成以及元素的构成，以及元素的变化，以及元素的变化，以及高度的材料（元素），以及高度（元素）的构成，以及质量（元素）的构成（元素），以及质量的变化（元素），以及高度（质量），以及高度（元素）的构成。评估。 这项工作将对教育，环境，能源和经济产生广泛的影响。 博士生将从公司研发和设计/生产环境中的扩展工业经验中获得。 食品生产中的浪费将减少，从而降低能源成本和污染物的排放。 喷雾干燥生产效率将提高，从而降低成本，从而增强美国的竞争地位。 最终结果将立即为食品加工行业有用。