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BP网络用于计算含C2H4体系高压汽液相平衡
Calculating High-Pressure-Vapor-Liquid Equilibrium Data of C2H4 System Using BP Neural Network
【摘要】 利用Levenberg Marquart优化算法,对含C2H4体系的高压汽液相平衡建立三层前向BP神经网络模型,其中,输入节点为温度(T),各组分液相组成(x1,x2);输出节点为压力(p),汽相组成y。结果表明,预测结果与实验数据有良好的一致性,所构建的神经网络对进一步研究高压汽液相平衡具有一定的指导意义。
【Abstract】 By using the BP artificial neutral network(ANN) with the Levenberg-Marquardt algorithm,high-pressure-vapor-liquid equilibrium(VLE) data of C2H4 system were calculated.Temperature,x1 and x2 were used as input,and pressure and y as output.The comparison of the results showed that ANN could be successfully used to predict vapor-liquid equilibria at high pressures,and could be an effective method in VLE data processing at high pressure.
【关键词】 BP神经网络;
高压汽液相平衡;
LM算法;
【Key words】 BP neural network; high-pressure-vapor-liquid equilibria; L-M algorithm;
【Key words】 BP neural network; high-pressure-vapor-liquid equilibria; L-M algorithm;
- 【文献出处】 化学工业与工程 ,Chemical Industry and Engineering , 编辑部邮箱 ,2005年02期
- 【分类号】O642
- 【被引频次】9
- 【下载频次】90