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所在平台: Udemy |
课程主页: https://www.udemy.com/course/dynamic-simulation-course-for-chemical-engineers/
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**Coursera 动态模拟课程（面向化工工程师）内容摘要** 本课程旨在教授化工工程师如何利用 Aspen-HYSYS、Aspen-Plus 或 UniSim 等先进模拟工具进行动态模拟。 **什么是动态工况？为什么需要动态模拟？** 在化工厂的运行过程中，许多参数（如液位、温度、压力、流量）会随时间变化，这些变化的过程即为动态工况。例如，装置的启动、停车，以及设备或仪表的故障（如冷却水泵突然停运导致蒸馏塔压力升高）都会引起参数的动态变化。 为了应对这些动态工况，需要引入各种控制系统，如压力控制、液位控制、流量控制和温度控制。这些控制系统的作用是抑制扰动，使装置恢复到稳定的状态。 **动态模拟的应用** 当化工装置的参数随时间变化时，稳态模拟无法准确反映其动态行为以及控制系统应对这些变化的可靠性。动态模拟能够： * 研究暂态行为（Transient Behavior） * 评估控制系统在暂态过程中的有效性 * 模拟化工、石化装置、炼油厂、输油输气管道等 * 验证装置中压力释放系统的可靠性（如衡量安全阀在异常情况下的作用） * 开发操作员培训模拟器（Operator Training Simulation, OTS），用于培训操作员进行装置启动、停车、识别异常原因及采取纠正措施。 **课程内容** 本课程将涵盖以下主题： 1. 动态模拟导论 2. 动态模拟的应用 3. 压力流量理论（Pressure Flow Theory） 4. 通过假设的流程图实例，演示如何配置基础控制系统，包括流量控制、液位控制、压力控制和温度控制。 5. 趋势图（Strip Charts）的演示，包括如何配置趋势图、更改日志记录大小以及如何读取趋势图。 **适用人群** 本课程适合所有希望学习动态模拟的化工工程师，包括工艺工程师、技术服务工程师和应用工程师。这是一个关于动态模拟的基础模块。 **模拟工具** 课程将使用 Aspen Hysys、Aspen Plus 或 UniSim 作为模拟工具。
Dynamic Simulation for chemical engineers using advanced simulation tools Welcome to our advanced Dynamic Simulation course using Aspen-HYSYS / Aspen-Plus/ UnisimWhat is Dynamic Condition in Plant? Why Dynamic Simulation?Condition in which parameters are changing with respect to time, it's called dynamic condition. E.g. when we take start up of the plant, levels in the vessels, temperatures, pressures, flow rates are changing. Shut down of the plant is similar situation as start up where parameters are changing with time. Similar situation is during malfunctioning of either equipment or instruments. E.g. if distillation column in a plant is running in a steady state mode, what happen if there is sudden trip of the pump supplying cooling water to the condenser? suddenly, pressure of the column starts shooting up. This is one example, but there are so many examples in the plant.Now, the question is how to tackle with dynamic condition. The answer is by introducing control systems, like pressure control, level control, flow control and temperature control. The function of any control system is to suppress the disturbance in the plant and bring plant once again into steady state condition.Application of Dynamic SimulationWhen parameters in the plant are changing, it cannot be modelled as steady state, or we cannot carry out steady state simulation to explain dynamic behavior as well as reliability of control systems to counter dynamic behavior. To study the transient behavior and effectiveness of the control system to control the transient behavior, Dynamic Simulation needs to be carried out.Dynamic simulation as an engineering tool is being used for carrying out simulation of various chemical, petrochemical plants, refineries, cross country pipelines etc.Dynamic simulation is also used to check the reliability of the pressure relief systems introduce in the plant i.e. how effectively pressure safety valves are handling abnormal situation.One of the very important applications of dynamic simulation is for developing Operator Training Simulation (OTS) using which operator will be trained; how to take start-up of the plant or shut down of the plant or identifying the cause for abnormality in the plant and corrective action for the same.Topics covered.In this module, following topics will be covered in detail.1. Introduction to dynamic simulation2. Application of dynamic simulation3. What is Pressure Flow Theory4. Example demonstration with hypothetic flow sheet to configure all basic control system like flow control system, level control system, pressure control system and temperature control system.5. Demonstration of strip charts i.e. how to configure strip charts, how to change logger size and how to read strip chartsThis course is very help to all Chemical Engineers, looking for learning Dynamic Simulation, Process Engineers, Technical Service Engineers, Application Engineers. This module is basic module for Dynamic Simulation.Tools for Dynamic Simulations are Aspen Hysys, Aspen Plus or UniSim.
