DIFFUSION STUDY OF NaCl AND KCl AT THE SOLUTION/OLIVE INTERFACE: MATHEMATICAL MODELING USING THE FINITE ELEMENT METHOD AND SELF-ORGANIZING FEATURE MAP (SOFM)-TYPE NEURAL NETWORKS

IF 0.5 4区 化学 Q4 CHEMISTRY, MULTIDISCIPLINARY
D. Borsato, M. Clemente, Heloisa Silva, Nathan Silva, Júlia Campos, Eduardo Sousa, H. Silva, Karina B. Angilelli, A. Mantovani, Rafael Mantovani
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引用次数: 0

Abstract

Olive samples were subjected to the salting process in brine containing 1196 mol m-3 of NaCl and 402 mol m-3 of KCl. Samples were collected during 60 h and salt concentration values were determined. With the finite element method (FEM) and the minimization of the errors percentage between the simulated and experimental values, the mass transfer coefficients in the film (hm) were obtained, being 1.0072 × 10-8 and 1.2499 × 10-8 for NaCl and KCl, respectively. The salts concentration at the olive/brine interface was simulated by FEM and analyzed via SOFM. A network with 4 × 4 topology and 10000 training epochs was used. It was observed that the influence of the stationary film formed on the surface of the olives during the salting process depends on the position, the salt involved in the diffusion and that the concentration of the salts, at each point, varies according to the immersion time.
NaCl和KCl在溶液/橄榄界面的扩散研究:使用有限元方法和自组织特征映射(SOFM)型神经网络的数学建模
橄榄样品在含1196 mol m-3 NaCl和402 mol m-3 KCl的盐水中进行腌制。60 h内采集样品,测定盐浓度。采用有限元法(FEM),尽量减小模拟值与实验值之间的误差百分比,得到了NaCl和KCl在膜内的传质系数hm,分别为1.0072 × 10-8和1.2499 × 10-8。采用有限元法模拟了橄榄/卤水界面的盐浓度,并用SOFM法对其进行了分析。使用4 × 4拓扑和10000个训练epoch的网络。观察到,在腌制过程中,橄榄表面形成的固定膜的影响取决于扩散所涉及的盐的位置,并且在每个点上盐的浓度随浸泡时间而变化。
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来源期刊
Quimica Nova
Quimica Nova 化学-化学综合
CiteScore
1.60
自引率
12.50%
发文量
72
审稿时长
2-4 weeks
期刊介绍: Química Nova publishes in portuguese, spanish and english, original research articles, revisions, technical notes and articles about education in chemistry. All the manuscripts submitted to QN are evaluated by, at least, two reviewers (from Brazil and abroad) of recognized expertise in the field of chemistry involved in the manuscript. The Editorial Council can be eventually asked to review manuscripts. Editors are responsible for the final edition of QN.
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