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首页> 外文期刊>Chemical Engineering Science >A COMPLETE DYNAMIC MODEL FOR THE THERMAL PROCESSING OF BIOPRODUCTS IN BATCH UNITS AND ITS APPLICATION TO CONTROLLER DESIGN
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A COMPLETE DYNAMIC MODEL FOR THE THERMAL PROCESSING OF BIOPRODUCTS IN BATCH UNITS AND ITS APPLICATION TO CONTROLLER DESIGN

机译：批量生产中生物制品热加工的完整动力学模型及其在控制器设计中的应用

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In this paper, we present the development and experimental validation of a dynamic model, based on first principles, for the thermal processing of bioproducts in steam retorts. The dynamic variability exhibited in the experiments is explained on the basis of nonlinear flow relations in the input and output streams and its coupling The performance of the model in simulating several experimental situations proved its validity over a wide range of operating conditions. The utility of the model must be understood in the context of testing and designing efficient control structures. Two examples will illustrate this fact: first, the model is employed to tune PID-type controllers by IMC techniques to control pressure and temperature in the sterilization cycle. The performance of the control configuration will be discussed and their limitations analysed on the basis of the dynamic model. In the second example, the model will be employed to design multivariable nonlinear model-based controllers for the control of pressure and level during the cooling stage. Its performance and robustness will be tested on simulation. (C) 1997 Elsevier Science Ltd. [References: 31]
机译：在本文中，我们介绍了基于第一性原理的用于蒸汽杀菌罐中生物产品热加工的动态模型的开发和实验验证。在输入和输出流中的非线性流动关系及其耦合的基础上，解释了实验中表现出的动态可变性。该模型在模拟几种实验情况下的性能证明了其在各种工作条件下的有效性。必须在测试和设计有效控制结构的上下文中了解模型的实用性。有两个例子可以说明这一事实：首先，该模型通过IMC技术用于调节PID型控制器，以控制灭菌周期中的压力和温度。在动态模型的基础上，将讨论控制配置的性能并分析其局限性。在第二个示例中，将使用该模型来设计基于多变量非线性模型的控制器，以在冷却阶段控制压力和液位。其性能和鲁棒性将在仿真中进行测试。 （C）1997 Elsevier Science Ltd. [引用：31]

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