Tunnel-type continuous multi-physical field drying equipment: Design, numerical simulation and application

文献类型： 外文期刊

第一作者： Zeng, Shiyu

作者： Zeng, Shiyu;Wu, Yiran;Lv, Weiqiao;Xiao, Hongwei;Zhou, Cunshan;Wang, Bo;Lv, Huangzhen;Zhao, Donglin

作者机构：

关键词： Tunnel type; microwave drying; infrared drying; physical field; cowpea

期刊名称：DRYING TECHNOLOGY （ 影响因子：2.7； 五年影响因子：3.2 ）

ISSN： 0737-3937

年卷期： 2024 年 42 卷 10 期

页码：

收录情况： SCI

摘要： In this study, a tunnel-type continuous multi-physical field drying equipment was developed to combine microwave, hot air, and infrared drying technologies. The microwave source arrangement and hot air equalizing plate were optimized based on numerical simulation to enhance the uniformity of the microwave field and hot air velocity distribution. Mode 4 and opening ratio 37.70% (r = 60 mm) were had the highest electric field distribution and hot air distribution. This equipment was further used to pre-dehydrate cowpeas and the effects of microwave, hot air, and infrared on food drying properties and quality of dried samples were investigated. The results showed that the moisture content was reduced by 20% and the Delta E value greater than 5 after pre-dehydration. Microwave treatment rapidly reduced the moisture content of cowpeas. The infrared treatment significantly improved the uniformity of temperature distribution and the texture profile of the dried sample. The hot air drying increased 10 degrees C for the overall temperature of the food material and balanced the internal water content of the food material. This study aims to provide future researchers with insights to develop novel microwave-based continuous drying equipment for its commercial applications.

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