| 热泵干燥过程中竹荚鱼水分迁移特性 |
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| 引用本文： | 石启龙,赵亚,李兆杰,薛长湖.热泵干燥过程中竹荚鱼水分迁移特性[J].农业机械学报,2010,41(2):122-126. |
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| 作者姓名： | 石启龙 赵亚 李兆杰 薛长湖 |
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| 作者单位： | 1. 山东理工大学农业工程与食品科学学院,淄博,255049
2. 中国海洋大学食品科学与工程学院,青岛,266003 |
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| 基金项目： | 国家"863"高技术研究发展计划资助项目，山东理工大学博士基金资助项目 |
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| 摘 要： | 以竹荚鱼为试验材料,对热泵干燥过程中鱼片的内部温度分布和水分迁移特性进行了研究.结果表明:热泵干燥过程的大部分时段中(干燥中、后期),竹荚鱼片内部温度分布比较均匀,基本未呈现出整体性的温度梯度.干燥过程中,竹荚鱼片沿厚度方向存在含水率梯度,并且随着干燥温度、风速的变化而变化.热泵干燥前期,鱼体干燥速度取决于鱼体表面水分蒸发的速度;干燥后期,干燥速度取决于鱼体内部水分移动的速度.热泵干燥过程中,竹荚鱼片的水分迁移主要是含水率梯度的作用.
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| 关 键 词： | 竹荚鱼 热泵干燥 水分迁移 含水率梯度 温度分布 |
Characteristics of Moisture Migration during Drying of Horse Mackerel by Heat Pump Dehumidifier |
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| Shi Qilong,Zhao Y,Li Zhaojie and Xue Changhu.Characteristics of Moisture Migration during Drying of Horse Mackerel by Heat Pump Dehumidifier[J].Transactions of the Chinese Society of Agricultural Machinery,2010,41(2):122-126. |
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| Authors: | Shi Qilong Zhao Y Li Zhaojie and Xue Changhu |
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| Institution: | 1.School of Agricultural and Food Engineering/a>;Shandong University of Technology/a>;Zibo 255049/a>;China2.College of Food Science and Engineering/a>;Ocean University of China/a>;Qingdao 266003/a>;China |
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| Abstract: | With horse mackerel as experimental material,the temperature distribution and migration characteristic of moisture during fish fillets drying by heat pump dehumidifier(HPD) were studied.The results showed that temperature distribution inside horse mackerel fillets is uniform during the great part of drying periods,and the regular temperature gradient along the direction of fish fillets thickness doesn't occur.During horse mackerel drying by HPD,an obvious moisture gradient along the direction of thickness o... |
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| Keywords: | Horse mackerel Heat pump drying Moisture migration Moisture content gradient Temperature distribution |
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