摘要
在二次正交旋转组合试验设计的２３种工况下，对魔芋冷冻干燥过程升华段进行模拟试验，研究了搁板温度、冻干室压力、升华时间对升华速率、升华温度及产品质量的影响，得到各指标随试验因素而变化的数学模型。应用多目标非线性优化理论和方法，对所得模型进行了优化研究和分析，得到魔芋冷冻干燥最优工艺参数。Ｆ检验和验证试验表明，所得模型和参数的置信度大于９９％，可用于指导魔芋的冻干生产。
Under twenty three kinds of working conditions with the design of quadratic-rotation- orthogonal experiment, the sublimation properties and pattern for konjak(Amorophophallusrivieri)during the lyophilization were studied by using the simulated tests,The effect of theplate temperature, pressure of freeze-chamber and sublimation time upon the sublimation-rate ,sublimation temperature and the quality of dried product was investigated.Also. themathematical model which indicated drying items change with testing factors was developed. After the optimization of the model by using multiple-object non-linear optimization theoryand technology,the optimum drying process and parameters for konjak have been obtained. The results of F-test and experimental verification show that the model and parameters canbe used in production.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
1995年第4期100-105,共6页
Transactions of the Chinese Society for Agricultural Machinery
