episode 53 : computer aided process engineering
TRANSCRIPT
SAJJAD KHUDHUR ABBASCeo , Founder & Head of SHacademyChemical Engineering , Al-Muthanna University, IraqOil & Gas Safety and Health Professional – OSHACADEMYTrainer of Trainers (TOT) - Canadian Center of Human Development
Episode 53 : Computer Aided Process Engineering
Computer Aided Process Engineering
Lecture notes and reading material* A lecture note covering all the lectures has been
prepared (see course home-page)* Supplementary text-books are listed
* A course home-page has been created* All lecture and tutorial material can be
downloaded from the home-page
http://www.capec.kt.dtu.dk/Courses/MSc-level-Courses/
What is Simulation?
Simulation is the act of representing some aspects of the
real world by numbers or symbols which may be manipulated to
facilitate their study
What is a Process Simulator?
An Engineering Tool which performs,
* Automated calculations
* Material and/or energy balances
* Physical property estimations
* Design/rating calculations
* Process optimizationIt is not a Process Engineer !
Design & analysis through process simulation/optimization
Divider
Mixer Reactor Separator
A chemical plant is our real world
Separator
Define Problem
Analyze results
Develop process model
Collect additional
data
Solve model equations
Main steps in process simulation
Divider
Mixer Reactor
Chemical Plant
Separator
Define Problem
Analyze results
Develop processmodel
h(x, y) = 0
Collect additional
data
Solve model equations - AE solver
Steady state simulation - solve algebraic equations
Divider
Mixer Reactor
Chemical Plant
Separator
Define Problem
Analyze results
Develop processmodel
h(x, y) = 0
Collect additional
data
Solve model equations -AE solver + NLP
method
Process optimization - minimize function s.t. constraints
Min (x, y)s.t g(x, y) 0 h1 (x,y) = 0
Divider
Mixer Reactor
Chemical Plant
Separator
Define Problem
Analyze results
Develop processmodel
h(x, y) = 0
Collect additional
data
Solve model equations - DAE solver
Dynamic simulation - solve ordinary differential equations
dx/dt = f(x,y)
Divider
Mixer Reactor
Chemical Plant
Problem Definition -What information do we need?
Divider
Mixer Reactor Separator
Known data
Stream data
Equipment data
Operating data
Chemical Plant
Unit operations
Mixture compounds
Process flowsheet
Problem Definition -What do we need to select (from a simulator)?
Divider
Mixer Reactor Separator
Library
Unit models
Thermo- models
Method of solution
Chemical Plant
Unit operations
Mixture compounds
Process flowsheet
Some Definitions
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5
Module; Stream; Flowsheet decomposition; Partitions;Recycle loop; Tear stream;
Calculation sequence; Simulation approach;Convergence technique
(see chapter 8 – lecture notes - for definitions)
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