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Process Simulation using DWSIM
The document discusses using the open source process simulation software DWSIM. It outlines several tutorials that demonstrate how to use DWSIM to simulate common unit operations and develop simple process flowsheets. The tutorials cover creating material streams, generating vapor-liquid equilibrium data, simulating mixers, heaters, distillation columns, and equilibrium reactors. The goal is to complement the learning process through hands-on simulation of different process scenarios using the free and effective DWSIM software.
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Process Simulation using DWSIM
- 1. Process Simulation usingDWSIM P. R. Naren School of Chemical & Biotechnology SASTRA University E-mail: prnaren@scbt.sastra.edu National Conference on Advances in Process Engineering CAPE-2015 SASTRA University Thanjavur, Tamilnadu 613 401 INDIA 10th October 2015 Progress Through Quality Education
- 2. Outline • Process Simulationand Simulation Tools • DWSIM • Spoken Tutorials – IITB • Tutorials on process simulation using DWSIM 10-Oct-15 Process Simulation using DWSIM 2
- 3. Process Simulation • Performmaterial and energy balance • Performance of equipment for given design • Sensitivity analysis • What-If analysis • Process synthesis and comparison 10-Oct-15 Process Simulation using DWSIM 3
- 4. DWSIM • Process Simulator •Steady State • Thermodynamic Models • Unit Operations • Free & Open Source • CAPE Open Complaint http://dwsim.inforside.com.br/ https://en.wikipedia.org/wiki/DWSIM http://dwsim.fossee.in/ 10-Oct-15 Process Simulation using DWSIM 4 Daniel Medeiros Process Engineer, Petrobras
- 5. FOSSEE Project • Freeand Open Source Software for Education • FOSSEE on DWSIM: http://dwsim.fossee.in/ • Spoken Tutorials 10 min short videos on DWSIM http://spoken-tutorial.org/ Forum to post queries on videos – Textbook Companion Project http://dwsim.fossee.in/Textbook_Companion_Project Code all solved examples of standard textbook Get paid ! Honorarium from IITB – Lab Migration Project Convert process simulation lab to DWSIM 10-Oct-15 Process Simulation using DWSIM 5 Dr. Kannan Moudgalya Chemical Engg., IITB
- 6. Tutorials • Creation ofmaterial streams • Creation of simple process flow sheet • Thermodynamics – Thermo physical properties of components – VLE data of binary component system • Process Units – Mixer – Simple heater – Simple distillation column – Flash column – Equilibirum reactor 10-Oct-15 Process Simulation using DWSIM 6
- 7. Tutorial 1 Specification ofMaterial Stream and Composition • Objective – Create material stream – Specify composition – Operating condition (Pressure, Temperature, State – Thermodynamics) • Spoken Tutorial • Data – Components: Benzene and Toluene – Composition: Equimolar – Thermodynamics: Raoults Law – Pressure: 1 atm – Temperature: 30oC 10-Oct-15 Process Simulation using DWSIM 7
- 8. Tutorial 2 Generation ofVapour Liquid Equilibrium (VLE) data • Objective – Generate binary component VLE (Pxy at T or Txy at P, y vs. x) • Data – Components: Benzene and Toluene – Pressure: 1 atm Generate Txy, y vs. x – Temperature: 50oC Generate Pxy, y vs x 10-Oct-15 Process Simulation using DWSIM 8
- 9. Tutorial 3 Mixing ofTwo Liquid Streams • Objective – Mix two liquid streams and estimate the flow rate and composition of outlet stream • Data – Inlet stream 1: 10 mol % Methanol solution at 20 kmol/hr – Inlet stream 2: 80 mol % Methanol solution at 10 kmol/hr – Both the streams are at 30oC and at 1 atm pressure – The liquid streams can be considered as ideal • Block – Mixer • Output – Outlet molar flow rate – Composition 10-Oct-15 Process Simulation using DWSIM 9
- 10. Tutorial 4 Heat dutythrough Simulation of Heater Block • Objective – Determine the heat duty required to heat a fluid to a desired temperature • Data – Fluid: Water – Inlet mass flow rate: 50 kg/hr – Inlet temperature: 25oC – Outlet temperature: 90oC – Pressure: 1 bar • Block – Heater • Output – Heat Duty 10-Oct-15 Process Simulation using DWSIM 10
- 11. Tutorial 5 Simulation ofa Simple Distillation Column • Objective – Develop a simple process sheet to simulate distillation column – Underwood Fenske Method • Spoken Tutorial • Output – Minimum reflux – Min. no. of stages – Condenser duty – Re-boiler duty 10-Oct-15 Process Simulation using DWSIM 11 Quantity Value Components Benzene, Toluene Thermodynamics Ideal – Raoult’s Law Feed Molar flow rate Mol fraction State 100 kmol/hr xF = 0.4 Saturated Liquid at P = 1 bar Reflux 2 Product Bottoms: xB = 0.05 Distillate: xD = 0.95
- 12. Tutorial 6 Simulation ofa Simple Process Flow Sheet – Mixer and Flash Column • Objective – Develop process sheet with Mixer and Flash Column Mix two streams Outlet from mixer is sent to flash column Estimate the vapour and liquid outlet • Spoken Tutorial • Output – Vapour composition – Liquid composition 10-Oct-15 Process Simulation using DWSIM 12
- 13. Tutorial 7 Simulation ofEquilibirum Reactor • Objective – Simulate equilibrium reactor to estimate conversion for reversible reaction (known stoichiometry) • Data – Reversible reaction – Water Gas Shift – Operating temperature: 900 K, Operating pressure: 1 atm – Inlet flow rate: 100 kmol/hr – Composition: stoichiometric ratio of CO and H2O • Block – Equilibrium Reactor • Output – Equilibrium conversion in terms of base component – Enthalpy of reaction 10-Oct-15 Process Simulation using DWSIM 13 2 2g g 2 g g CO H O CO H
- 14. To Sum Up •DWSIM – Effective and promising open source process simulation tool • Complement learning process through simulation of difference process scenarios 10-Oct-15 Process Simulation using DWSIM 14
- 15. Gratitude • Prof KannanMoudgalya, IITB – M. Neelesh Chandran, Chemical Engg., SASTRA – C. S. Vighnesh, Chemical Engg., SASTRA • CAPE-2015 and IIChE Student Chapter – For this wonderful opportunity – PR Team for their registration drive !! – Technical and Infra support team • Audience 10-Oct-15 Process Simulation using DWSIM 15
- 16. THANK YOU A personwho never made a mistake never tried anything new - Albert Einstein - 1879 -1955 Entities must not be multiplied beyond necessity - William of Ockham - 12th A.D. 10-Oct-15 Process Simulation using DWSIM 16