冬枣片气体射流冲击干燥特性与模型分析  

Pulsed Air-impingement Drying Characteristics of Winter Jujube Slices and Model Analysis

作　　者：魏事宇 王高 曹玉雪 张湘楠 刘旭东[3] 姚雪东[1] Wei Shiyu;Wang Gao;Cao Yuxue;Zhang Xiangnan;Liu Xudong;Yao Xuedong(College of Mechanical and Electronic Engineering, Shihezi University,Shihezi 832000,China;Anhui Academy of Agricultural Sciences, Hefei 230030,China;The 5271 Factory of People 's Liberation Army, Shijiazhuang 050200,China)

机构地区：[1]石河子大学机械电气工程学院,新疆石河子832000 [2]安徽农业科学院,合肥230030 [3]中国人民解放军第五七二一工厂,石家庄050200

出　　处：《农机化研究》2019年第3期259-263,共5页Journal of Agricultural Mechanization Research

基　　金：国家自然科学基金项目(31360411)

摘　　要：研究了冬枣片在各种干燥温度、风速和转速条件下的气体射流冲击干燥特性,并进行了方差分析,建立了冬枣片气体射流冲击干燥的数学模型,且对实验数据进行了拟合与验证。实验结果表明:冬枣片的整个干燥过程属于降速干燥。采用Modified Page等5种薄层经典干燥模型对干燥过程进行拟合,通过决定系数R2、均方误差根(RMSE)和误差平方和(SSE)等拟合优度评价指标对几种经典干燥模型的拟合进行评价,结果表明:冬枣片气体射流冲击干燥过程与Modified Page经典干燥模型较为吻合。Aiming at the pulsed air-impingement drying characteristics of winter jujube slices under different drying temperatures, air velocities and pulsation rates. The mathematical model of pulsed air-impingement drying winter jujube slices was established, the experimental data were fitted and verified. The experimental results show: the entire drying process of winter jujube slices belong to the falling rate drying. The drying process were fitted by five thin layer classic drying models, the fitting quality was evaluated by the correlation coefficient ( R^2 ), root mean square error ( RMSE ) and the sum of squared errors ( SSE ). The results of calculations proves that the Modified Page model was better for predicting the moisture ratio change of the pulsed air-impingement drying characteristics of winter jujube slices.

关 键 词：冬枣片 气体射流冲击 干燥模型 方差分析 

分 类 号：S375[农业科学—农产品加工]