An Introduction To Process Simulation And Aspen Hysys
An introduction to Process Simulationand Aspen Hysys for Net-Master students10.8.2017Lars Erik ØiProfessor in Process TechnologyHøgskolen i Sørøst-Norge
Todays Agenda Short Introduction to Aspen Hysys HYSYS-demo I HYSYS-demo II Sample examplesHøgskolen i Sørøst-Norge(20 min.)(25 min.)(20 min.)(10 min.)2
What is process simulation? Rigorous computer calculations of materialand energy balances and equilibrium data fora process unit and/or a whole plant.Result: Sizing of unit operations are performed. All process conditions , material streams andenergy streams are calculatedHøgskolen i Sørøst-Norge3
Process Simulation Tools PRO/II, PRO/VISION (Statoil) ASPEN PLUS (Statoil/TCM/HSN) (ASPEN) HYSYS (Aker Solutions/Statoil/HSN)Høgskolen i Sørøst-Norge4
What can HYSYS do ? Calculate heat and mass balances, Calculate thermodynamic data andequlibrium Sizing and capacity evaluation of variousequipment (unit operations) Economic optimization of units/plants Dynamic simulation capabilitiesHYSYS can evaluate designs for profitability,operability, safety and for improvements.Høgskolen i Sørøst-Norge5
Process on Platform Sleipner AHøgskolen i Sørøst-Norge6
Glycol dehydration Process DiagramDry htankReboilerGlycolpumpWet gasRich glycolHøgskolen i Sørøst-Norge7
Aspen HYSYS flowsheet model forGlycol Plant for removing water from natural gasHøgskolen i Sørøst-Norge8
Purpose of Plant-simulation Comprehensive Plant modeling:1)2)3)4)5)To evaluate plants for profitabilityTo evaluate plants for operabilityTo evaluate plants for safetyTo improve existing plantsTo develop training simulators foroperatorsHøgskolen i Sørøst-Norge9
How does Aspen Hysys work (I) Interactive calculationsCalculations are run as soon as there is sufficientinformation for a stream or unitSo a minimum of information isneeded.Høgskolen i Sørøst-Norge10
How does Aspen Hysys work (II) Minimum information for a stream :Given : Composition (mole or mass fraction),Pressure (P) and Temperature (T),Flow (mass or molar)Hysys calculates vapour fraction and all otherproperties (density, enthalpy, energy, volume.)Høgskolen i Sørøst-Norge11
How does Aspen Hysys work (III) Composition and flow must always be givento calculate a stream. Usually the last 2 variables is P and TBut not always !You must specify 2 of the 3 variablesP , T or vapour fractionHøgskolen i Sørøst-Norge12
Workbook for StreamsHøgskolen i Sørøst-Norge13
Bubble Point Calculations Given : Composition, P and vapor fraction 0Calculates bubble point Temperature Given : Composition, T and vapor fraction 0Calculates bubble point PressureHøgskolen i Sørøst-Norge14
Dew Point Calculations Given :Composition, P and vapor fraction 1Calculates dew point Temperature Given :Composition, T and vapor fraction 1Calculates dew point PressureHøgskolen i Sørøst-Norge15
Valve calculation in Aspen Hysys1)2)Inlet stream (1) must be specified/calculatedThe valve operation is isenthalpic, meaning no entalphychange across valve (H inlet stream H outlet stream)Must specify : Pressure in outlet stream or pressure drop ( P)Outlet Stream is calculated completelyHøgskolen i Sørøst-Norge16
Cooler/Heater calculations in Aspen Hysys One sided heat-exchanger : Inlet stream is specified Must specify :1)Temperature in outlet2) Pressure drop ( P)Hysys calculates : The energy removed or added (duty)Høgskolen i Sørøst-Norge17
Compressor calculations in HysysInlet stream specifiedNormally Specify:1) Pressure in outlet stream2) Compressor EfficiencyHysys calculates : Outlet temperature and energy(energy is the compressor work)Høgskolen i Sørøst-Norge18
How to start a simulation in Aspen Hysys1)2)3)4)5)6)Start Aspen Hysys from the menuDefine a New caseDefine all the components in your caseChoose Peng Robinson (Equation of state)Enter the ”simulation environment”To specify composition: Left click on moleflow or mass flow and specify fractions orflows of each componentHøgskolen i Sørøst-Norge19
Aspen HYSYS demo I Specified oil/gas/water flow in 100 kmol each of n-decane, methane, water Temp. in 60 C, pressure 90 bar Pressure reduction to 1 bar ( 1 atmosphere) Three phase separation at 1 bar (Re)compression to 60 bar What is then the compressor effect?Høgskolen i Sørøst-Norge20
Oil/Water-separatorPressure(height) *g*hHøgskolen i Sørøst-Norge21
Oil/Gas/Water-separatorHøgskolen i Sørøst-Norge22
Aspen HYSYS demo II Specified oil/gas/water flow in 100 kmol each of n-decane, methane, water Temp. in 60 C, pressure 90 bar Pressure reduction to 60 bar and 1 bar Three phase separation at 60 and 1 bar (Re)compression to 60 bar What is then the compressor effect?Høgskolen i Sørøst-Norge23
How to start a simulation in Aspen Hysys 1) Start Aspen Hysys from the menu 2) Define a New case 3) Define all the components in your case 4) Choose Peng Robinson (Equation of state) 5) Enter the ”simulation environment” 6) To specify composition: Left click on mole flow or m
1 Simulation Modeling 1 2 Generating Randomness in Simulation 17 3 Spreadsheet Simulation 63 4 Introduction to Simulation in Arena 97 5 Basic Process Modeling 163 6 Modeling Randomness in Simulation 233 7 Analyzing Simulation Output 299 8 Modeling Queuing and Inventory Systems 393 9 Entity Movement and Material-Handling Constructs 489
I Introduction to Discrete-Event System Simulation 19 1 Introduction to Simulation 21 1.1 When Simulation Is the Appropriate Tool 22 1.2 When Simulation Is Not Appropriate 22 1.3 Advantages and Disadvantages of Simulation 23 1.4 Areas of Application 25 1.5 Some Recent Applications of Simulation
Simulation is a process of emulating real design behavior in a software environment. Simulation helps verify the functionality of a design by injecting stimulus and observing the design outputs. This chapter provides an overview of the simulation process, and the simulation options in the Vivado Design Suite. The process of simulation includes:
Simulation data management Simulation-specific data, document, record and content management Simulation-specific product structure Integration with the product & engineering bill of materials, including the management of configurations and variants. Simulation change and process management Revision/version control. Simulation visualization
I Introduction to Discrete-Event System Simulation Chapter 1 Introduction to Simulation 1.1 When Simulation 1s the Appropnate Tool 1.2 When Simulation 1s Not Appropriate 1.3 Advantages and Disadvantages of Simulation 1.4 Areas of Application 1.5 Systems and System Environment 1.6 Co
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Solutions Manual Discrete-Event System Simulation Fourth Edition Jerry Banks John S. Carson II Barry L. Nelson David M. Nicol January 4, 2005. Contents 1 Introduction to Simulation 1 2 Simulation Examples 5 3 General Principles 19 4 Simulation Software 20 5 Statistical Models in Simulation 21 6 Queueing Models 36 7 Random-Number Generation 44 8 .
Discrete-Event System Simulation. 1 Introduction to Simulation A simulation is the imitation of the operation of a real-world process or sys-tem over time. Whether done by hand or on a computer, simulation involves the generation of an a
