| 摘要: |
| 【目的】了解烟叶密集烘烤过程中叶间隙风速的变化，为实现烤烟的精准烘烤提供参考。【方法】采用风速仪对中棚烟叶8个位点的叶间隙风速进行实时监测，同时记录烤房的干湿球温度，并于烘烤开始后每隔4 h取样1次，测定烟叶叶片与叶脉的含水率。【结果】烘烤过程中8个位点叶间隙风速差异较大，其中6号位点的风速始终处于较低水平；不同烘烤阶段各位点风速的变化比较复杂，大部分位点表现为先降后升的趋势；烟叶变黄阶段、定色阶段、干筋阶段烟叶间隙风速变化的主导因素分别为湿球温度与叶片含水率、烟叶主脉含水率与干球温度及主脉含水率。【结论】不同烘烤阶段影响叶间隙风速变化的因素并不相同，烘烤过程中可以有目的地调整烤房温湿度，并通过改善烟叶形态变化控制叶间隙风速的变化。 |
| 关键词: 烤烟 密集烘烤 散叶插签 叶间隙风速 烘烤阶段 |
| DOI： |
| 分类号: |
| 基金项目:中国烟草总公司科技项目“浓香型烤烟调制关键技术研究”（Ts-01-2011006） |
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| Change of wind speed in leaves gap of lose-leaf bulk curing with leaf-holding needle during curing process |
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LU Xiaochong,SONG Zhaopeng,PEI Xiaodong,et al
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| Abstract: |
| 【Objective】This study investigated the changes of wind in tobacco leaves gap in bulk curing process to provide reference for accurate curing.【Method】The leaves gap wind at 8 loci in middle layer was monitored using anemometer in bulk curing process,and wet and dry bulb temperatures were recorded.Samples were taken every 4 h since the beginning of curing for water contents of leaf blade and main veins.【Result】There were large differences in leaves gap wind among the 8 loci during curing process.The wind speed of 6th loci was always at low level.The change of wind speed was complex at different curing stages with the tendency of increasing first before decreasing at most loci.Wet bulb temperature and moisture content of leaves were the dominant factors for the change of wind speed in yellowing stage.Moisture content of main vein and dry bulb temperature were the dominant factors in the color setting stage.Moisture content of main vein was the dominant factor in the killing out stage.【Conclusion】The influence factors were different in different curing stages.The wind speed of leaves gap could be controlled by adjusting the temperature and humidity of the curing barn. |
| Key words: Flue-cured tobacco bulk curing lose-leaf with leaf-holding needle wind speed of leaf gap curing stage |
