钟 江,单保淋,乔欣.基于微流体水分散失的茶叶杀青研究[J].轻工机械,2016,34(3): |
基于微流体水分散失的茶叶杀青研究 |
Research of Tea Fixation Based on Microfluid |
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DOI:10.3969/j.issn.1005-2895.2016.03.004 |
中文关键词: 茶叶加工技术 杀青 微流体 失水模型 EDEM-FLUENT软件 |
英文关键词:tea processing technology fixation microfluid water loss model EDEM -FLUENT |
基金项目:国家自然科学基金资助项目:基于微流体动力学的茶叶干燥机理研究(31201138)。 |
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中文摘要: |
针对茶叶粗加工中杀青等工艺存在的失水机理不明确的问题,提出一种基于微观流体的水分散失模型。利用FLUENT软件构建了茶叶单细胞和多细胞的失水模型,对其失水过程做了仿真研究。结合热风滚筒杀青设备,将热风滚筒杀青机的进风口风帽由内凹改成外凸。仿真结果表明:在一定范围内,温度升高对细胞内部的水流速度有略微的影响,但流动速度加快不显著;优化后的进风口结构有利于杀青质量的提高。从微观角度对茶叶鲜叶中水分的流动进行分析,可为茶叶杀青等相关干燥失水设备的研发提供研究基础。 |
英文摘要: |
To solve the problem of water loss mechanism during tea steaming process, water loss model based on the
micro flow water was proposed. The water loss model of single cell and multi cell was constructed in Fluent. Combined
with the air cylinder drying equipment. the structure of air inlet was optimized. The results show: within a certain
range , the temperature rise has a slight effect on the flow velocity of the cell. The air inlet structure of air cylinder drying
machine changed from concave to convex can improve the quality of fixing. The flow of water was analyzed in micro-
scale. which could provide research foundation for developing tea steaming and other related drying equipments. |
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