Download - Process Simulation using DWSIM
Process Simulation using DWSIM
P. R. NarenSchool of Chemical & Biotechnology
SASTRA University
E-mail: [email protected]
National Conference on Advances in Process Engineering CAPE-2015
SASTRA UniversityThanjavur, Tamilnadu 613 401 INDIA
10th October 2015
Progress Through Quality Education
Process Simulation using DWSIM
Outline
• Process Simulation and Simulation Tools
• DWSIM
• Spoken Tutorials – IITB
• Tutorials on process simulation using DWSIM
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Process Simulation using DWSIM
Process Simulation
• Perform material and energy balance
• Performance of equipment for given design
• Sensitivity analysis
• What-If analysis
• Process synthesis and comparison
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Process Simulation using DWSIM
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/
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Daniel MedeirosProcess Engineer, Petrobras
Process Simulation using DWSIM
FOSSEE Project
• Free and 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
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Dr. Kannan MoudgalyaChemical Engg., IITB
Process Simulation using DWSIM
Tutorials
• Creation of material 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
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Process Simulation using DWSIM
Tutorial 1
Specification of Material 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
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Process Simulation using DWSIM
Tutorial 2
Generation of Vapour 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
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Process Simulation using DWSIM
Tutorial 3
Mixing of Two 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
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Process Simulation using DWSIM
Tutorial 4
Heat duty through 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
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Process Simulation using DWSIM
Tutorial 5
Simulation of a 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
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Quantity Value
Components Benzene, Toluene
Thermodynamics Ideal – Raoult’s Law
FeedMolar flow rateMol fractionState
100 kmol/hrxF = 0.4Saturated Liquid at P = 1 bar
Reflux 2
Product Bottoms: xB = 0.05Distillate: xD = 0.95
Process Simulation using DWSIM
Tutorial 6
Simulation of a 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
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Process Simulation using DWSIM
Tutorial 7
Simulation of Equilibirum 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
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2 2g g 2 g gCO H O CO H
Process Simulation using DWSIM
To Sum Up
• DWSIM – Effective and promising open source process simulation tool
• Complement learning process through simulation of difference process scenarios
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Process Simulation using DWSIM
Gratitude
• Prof Kannan Moudgalya, 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 15
Process Simulation using DWSIM
THANK YOU
A person who 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.
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