高压电场干燥枸杞机理和数学模型的研究

项目名称： 高压电场干燥枸杞机理和数学模型的研究

项目编号： No.51467015

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 电工技术

项目作者： 丁昌江

作者单位： 内蒙古工业大学

项目金额： 48万元

中文摘要： 枸杞干制广泛采用晒干或烘干等传统技术，存在产品有效成分损失大和品质差等缺点。高压电场干燥技术是一种新型的干燥技术，具有非常多的优点。但针对高压电场干燥的研究都是在初步的实验阶段，干燥模型的研究也在初步阶段，干燥机理尚不清楚。本项目运用高压电场干燥技术对枸杞进行处理，对其干燥特性、产品品质、工艺参数进行较基础性研究。在前期研究的基础上，从电场特性和枸杞性质两方面入手对干燥机理进行更深入的研究，建立能够反映干燥过程的数学模型和干燥物料中的水分扩散模型，揭示枸杞的高压电场干燥规律。此项目为枸杞高压电场干燥的过程控制和预测提供理论依据；同时为高压电场干燥技术更广泛的应用提供理论基础；希望为繁荣当地经济和增加农民收入出一份力。

中文关键词： 高压电场；干燥；枸杞；数学模型；机理

英文摘要： At present, the conventional drying processes of Chinese wolfberry include solar drying and hot air drying etc. These drying processes often cause adversely affects texture, color, and nutritional value of Chinese wolfberry. As the result, the product quality is often poor. High-voltage electric field drying is a relatively new, nonthermal drying technique, and it has been investigated by many researchers in vegetables, fruits, aquatic food, grains, and other heat-sensitive materials. But, it is not a profoundly studied the method of drying, especially in the drying mechanism and mathematical models. In this project, Chinese wolfberry would be dried in high-voltage electric field system in order to study the drying characteristic, product quality and technological parameter. The drying mechanism would be investigated based on the characteristic of the high voltage electric field and Chinese wolfberry. The mathematical models that described the drying processes and diffusion model of moisture in the material would be established. This would reveal the drying discipline of Chinese wolfberry in high-voltage electric field system. This work provides the theoretical foundation for drying process control and prediction of Chinese wolfberry in high voltage electric field system. It also provides the theoretical foundation for the extensive application of high-voltage electric field drying technology. We hope to contribute to the prosperity of the local economy and the increase of the farmers' income.

英文关键词： high-voltage electric field;drying;Chinese wolfberry;mathematical modeling;mechanism