EURECHA session 1999 Presentation given in Budapest, 31 May 1999 at ESCAPE 9 Symposium

CAPE Elements in Process Design & Engineering Education of Delft University of Technology by Johan Grievink Acknowledgements:C. Hellinga, P. Herder, M. Ottens, M. Thijs aims and structure of education ‘environment’ of a process design engineer CAPE elements required development

Structure of Chemical Technology Education equipment design process simulation lab. dynamics and control process design coursedesign project research project group design project advanced courses individual design project Ir. degree (MSc) Master’s degree in Adv. Design & Engin. PhD degree job in industry better job in industry research job in industry research year Intro. Systems engineering advanced courses

Management of Technology Management of Operations Production Control logistics of feedstocks & products production planning & sceduling Process Control & Optimisation model-based control & optimisation start-up/shut-down/switching procedures Process & Unit Equipment (with safeguarding & basic control) Integrated Design Environments (process, equipment, optimising control) process systems management levels design environment Engineering for Process Design & Control of Operations (a) (b) (c) (d) (e) (f)

The ‘Environment’ of a Process Designer interface with business and society scope and design basis (battery limits & conditions) criteria for evaluation (economics, safety, environmental Available domain knowledge sciences {(bio)chemical, physical, biological,...} engineering {equipment, control, safety, …} design methods and tools synthesis of structure analysis of behaviour optimisation of performance working procedures design & engin. conventions communication & reporting team work creative thinking

Generic steps of design cycle scope and specifications of design available knowledge about building blocks synthesis of structure analysis of physical behaviour evaluation and optimisation of performance experimental efforts in process development report on design results, choices and rationales

Knowledge development and application in process life phases DevelopmentDesignOperation Experiments Theory Computing Structure Behaviour Performance Monitoring Control Optimisation Learning Models of Phenomena Process Models (System Design) Plant Models (Validated)

Systeemtechniek (yr 2 / 3 cp) = Modelling + System analysis + Simulation Numerical solutions Training with MATLAB/ SIMULINK (40h) Mechanistic dynamic model (non-gradient) R Block diagram Analytical solutions (time & Laplace domain) Linear systems (55 h) System order Stability Phase plane behaviour (eigenvalues/vectors) Model simplification (eigenvalues) Non-linear systems (25 h) Linearization Mutiple working points Local stability Informal methods for approximate solutions (characteristic times)

Process Simulation Laboratory Introduction: –3 rd year, 5 day course, tool: ChemCAD or AspenPlus Objectives: –get insight in different chemical processes –get knowledge of flowsheeters –get appreciation of opportunities/ limitations –handle problems in modelling processes

Approach: –2 days introduction to basics thermo, separations (VLE/ LLE), convergence. –3 days process simulation (groups of 2) – report:assumptions, design specs,costs Results: –most students reach goals on time –students are positive (experience in integration) –5 days is short, 8 would be better –more time needed for convergence problems

CAPE tools in Bioprocess Technology Education Increasing role in: undergraduate education and postgraduate design courses Emphasis on ‘bio’ 1 and batch 2 1: need: thermodynamic framework aqueous electrolytes with proteins 2: event tracking: ‘Ghant Chart’ Software SuperPro Designer ® choice between batch and continuous; recycles; economic evaluation easy connecting unit operations (uo); specific bio uo’s; shortcut models lack of sound bio-thermodynamic models; Usage in education industrially relevant design case. e.g.: –PenG (Penicillin G: ‘Antibiotic’) and further Semi Synthetic Antibiotics –r-Lamminol (‘Antidepressant’) Aim: to focus on whole process during design Biotechnological Sciences Delft Leiden T.B. Jensen, M. Ottens, L.A.M. van der Wielen, Kluyver Institute for Biotechnology

Piquar Plant design Improvement by QUAlity Review  identify the relevant quality criteria for the design in discussion with the project owner  assess and evaluate the criteria during the design process  determine when the design process can be stopped Piquar OwnerDesigner Existing toolbox

Evaluation by students design team

Overview of use of CAPE tools design step MSc MD&E

Required Developments integration of steady state and dynamic simulations batch process synthesis and simulation multi-media support to process simulations controllability aspects support tools for identifying design specifications and for process synthesis

For further information: Contact: Johan Grievink Delft University of Technology, Department of Chemical Technology P.O.Box 5045, 2600 GA Delft, the Netherlands