This paper describes Process Simulation and Control (PSIC), a user‐friendly Excel add‐in application, for studying process dynamics and designing simple control systems, through modeling and simulation in the time domain. It is an interactive tool for education, which utilizes a well‐known spreadsheet environment. It has been designed to help bachelor students of Chemistry understand the behavior of basic chemical engineering systems and basic principles of feedback control, without the need to program in Visual Basic for Applications or to understand Laplace transformation. PSIC allows students to build dynamic simulation models of liquid storage systems, heat or mass transfer processes, chemical and biochemical reactors, and many more systems. PSIC can simulate systems consisting of up to 10 ordinary differential equations of the first order, with up to 25 quantities. Optionally, simulation models can be connected to a feedback proportional–integral–derivative controller into a configurable regulatory loop. The use of PSIC is illustrated in the simulation and control of an electrically heated water heater.

中文翻译：

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用于化学过程模拟和控制基础教育的基于电子表格的工具

本文介绍了过程仿真和控制 (PSIC)，这是一个用户友好的 Excel 插件应用程序，用于通过时域中的建模和仿真来研究过程动力学和设计简单的控制系统。它是一种用于教育的交互式工具，它利用了众所周知的电子表格环境。它旨在帮助化学本科生了解基本化学工程系统的行为和反馈控制的基本原理，而无需在 Visual Basic for Applications 中编程或了解拉普拉斯变换。PSIC 允许学生建立液体储存系统、传热或传质过程、化学和生化反应器以及更多系统的动态模拟模型。PSIC 可以模拟由多达 10 个一阶常微分方程组成的系统，最多 25 个数量。或者，仿真模型可以连接到反馈比例-积分-微分控制器，形成一个可配置的调节回路。PSIC 的使用在电热水器的模拟和控制中进行了说明。