摘要
应用双视窗单轴压榨试验装置,开展不同压榨速率、物料形态、压榨次数和压榨方式等条件下的蓖麻籽一维压榨试验,研究不同压榨条件下的压缩比与榨饼残油率的关系。结果表明:多次压榨较单次压榨可以达到更大的压缩比,进而降低压榨后的饼粕残油率。同时,采用Kawakita方程,建立压缩比-残油率关系拟合模型,应用最小二乘法对试验数据进行参数反演,求得模型参数,并进行误差分析。建立的压缩比-残油率关系拟合模型为W=a_1+a_2e^(a_3ε_n)。该模型平均误差e相差不大,在5.08%~6.67%,模型参数准确。
In this paper,the relationship of compression ratio﹣residual oil was studied using the experimental equipment under conditions of pressing speed,pressing time,pressing manners and oilseed forms.The results showed that the morepressing times can get lower residual oil of castor cake.The mathematical model was built by Kawakita equation and pa﹣rameters were obtained by the least square procedure.The model of compression ratio﹣residual oil was expressed byformula W=a1 ＋a2 ea3εn .The average errors for model range from 5.08% to 6.67%,showing an accuracy of modelparameters.
出处
《湖南林业科技》
2016年第4期40-43,共4页
Hunan Forestry Science & Technology
基金
国家重点研发计划(2016YFD0600802)
长沙市科技计划项目(k1508130-61)
关键词
蓖麻籽
压缩比
残油率
最小二乘法
castor bean
compression ratio
residual oil
least square procedure
