Aspen plus in small steps - presentation

ASPEN PLUS
IN SMALL STEPS
Hamed Hoorijani, Msc
Process engineer
Hoorijani.ir

CONTENT
 How To Add Components And Proper Fluid Package For Your Model
 How To Add A Material Or Energy Stream In Your Flowsheet
 Adding Process Equipment And Their Tabs – Heat Exchangers
 Adding Process Equipment And Their Tabs – Valves
 Adding Process Equipment And Their Tabs – Separators
 Adding Process Equipment And Their Tabs – Pumps And Compressors
 Adding Process Equipment And Their Tabs – Columns
 Using Design Specs To Find Optimum Values
 Sensivity Analysis
 Optimization Toolbox
 Coupling With Matlab

HOW TO ADD COMPONENTS AND PROPER FLUID
PACKAGE FOR YOUR MODEL
 Add components list below and choose proper fluid package:
Components
H2O CO2
CH4 C2H6
C3H8 i-C4
N-C4 i-C5
N-C5 C6

You can find the
components using the
opened tab
Electrolyte define tab
User defined
components
Review the components
list and some of their
attribution
Change the order of
components list based on
your need
Define petroleum
components
features
Enterprise
database
Define
nonconventional
components
Information
about the case

Filtering the methods
Method list based on the method filter
Defining henry components
Petroleum calculation
Method names using
methods assistant

Recommended fluid packages based on the application

Guide on choosing Equation of state:

Guide on choosing proper activity model:

HOW TO ADD A MATERIAL OR ENERGY STREAM IN
YOUR FLOWSHEET
Operation condition
of the stream
Stream’s composition base
Input stream’s
composition

HOW TO ADD A MATERIAL OR ENERGY STREAM IN
YOUR FLOWSHEET
Duty of the energy stream

 Website : www.Hoorijani.ir
 Linked : https://www.linkedin.com/in/hamed-hoorijani/
 YouTube : https://www.youtube.com/channel/UC40DR521HAdl50qKcrGz3Jg
 E-mail: Hoorijani@ut.ac.ir, Hoorijani.h@gmail.com

ADDING PROCESS EQUIPMENT AND THEIR TABS –
HEAT EXCHANGERS
Choosing the input parameters
for the heater
(Freedom degree =2) Input values based on the chosen
parameters

HEAT EXCHANGERS
Heat exchanger type
(Shortcut is the
simplest way to have
an estimate for the
result)
Flow type
Flow
configuration
Type of calculation : Design, rating,
Simulation, Max. Fouling
Type of specs for the block

HEAT EXCHANGERS
LMTD calculation for the block
Pressure drop for the block
(Hot/Cold side)

HEAT EXCHANGERS
U value calculation
method

VALVES
Calculation type for
valve
Mathematical and
physical options for
the valve
Pressure specs
for valve

SEPARATORS
Input parameters
and their values for
flash separation
Valid phases for
calculation
Two phase separator

SEPARATORS
More flash point calculation
Mathematical and
convergence parameters
Liquid entrainment options

SEPARATORS
Three phase separator
Input parameters and their values
for three phase flash separation
Key component selection in 2nd
liquid phase in three phase

SEPARATORS
Input parameters and their
values for the calculation
Key component selection in
2nd liquid phase
Decanter (liquid-liquid) separator

SEPARATORS
calculation methods and
options

SEPARATORS
Component (multi outlet) splitter separator
Selecting the outlet
stream
Choosing the component, basis
of the composition and its
value in the chosen outlet
stream

SEPARATORS
Component (two outlet) splitter separator
Choosing the outlet stream
Choosing specs and components for
the component splitter

PUMPS AND COMPRESSORS
Pumps:
Pump model
Specs for the design and
calculation
Efficiencies for the pump
and its driver

Pumps:
Design parameters for pump
Physical and mathematical
parameters for the calculation

Compressor:
Model and type of
the calculation
Outlet specs for
calculation
Efficiencies of the
chosen type and
mechanical

Compressor:
Advanced
calculation options
Suction nozzle
paramters

Compressor:
Correlations and options
for power loss
Correlations and
options for power
loss

COLUMNS
DSTW (simplest column)
Column’s specs Column’s pressure
Condenser spec and type
Spec for the separation
Light key is the volatile
component in the bottom
product and heavy key is the
heaviest component in the
distillate product

COLUMNS
DSTW (simplest column)
Calculation options
Flash physical and
mathematical options
Minimum mathematical
options

COLUMNS
Columns specs
Flash
calculation
options
Mathematical
options
Pressure
specs

COLUMNS
Main settings and
features of the column
Main design specs
required (based on the
column’s freedom degree)

COLUMNS
Feed streams
connected to the
column and their
stages
Product and pseudo
streams connected
to the column with
their defined specs

COLUMNS
Type of the pressure
input and the values

COLUMNS
Primary defined specs types
and values
Additional specs
and variables for
more accurate
results (inside
column design
spec)

COLUMNS
To have a accurate simulation
you can define more specific
specs and variables
In here you should define a new
design spec (inside column
design spec)

COLUMNS
After creating a new design spec
you can define the type and the
location of it, then define its value

COLUMNS
Here you should define the
variable you want to adjust to
have accurate simulation
Be aware that you must choose
your variable for design spec from
the previous defined specs in the
specification/configuration tab

COLUMNS
You can select and choose the location
of the variable among the variables of
the column
Define the lower and upper bound of
the variable to be adjust for the
optimum value of the spec’s value

COLUMNS
Thermal option of calculation
Defining heat duty
profile in the column
Defining temperature
profile in the column
Column’s configuration

COLUMNS
List of components and
selecting key component to
be extracted using 1st liquid
List of components and
selecting key component to
be extracted using 2nd liquid

COLUMNS
Feed streams to the
extraction unit
Product streams from the unit

COLUMNS
Pressure profile in the column

COLUMNS
Temperature profile in the column
(generate estimation based on the heat
duty and mass transfer in the column)

USING DESIGN SPECS TO FIND OPTIMUM VALUES
Adding a new
design spec for
the model

List of the desired
variables in the
model
Choosing the accurate
variable (selecting the
appropriate block, stream and
physical property)
Variable list in the
model

Name of the variable in define tab
Target value and tolerance
of the spec
Choosing the vary type and
selecting its location in the
model (the stream or block
name, which physical
property)
Choosing
variable limits
for which the
design spec
should search
for a proper
value to reach
the spec

SENSIVITY ANALYSIS
Press new to create a
sensivity analysis case

SENSIVITY ANALYSIS
List of variables in
the sensivity
Value steps of the selected
variable with two choice of
listing values or entering
the lower and upper limits
of the variable
FirstVariable : variable name
Type: type of value. Is it a block
variable or stream or …
Block or stream or ..: selecting the
proper stream or equipment
Second variable: physical variable to
change as vary in the model
Adding new variables to
the sensivity

SENSIVITY ANALYSIS
List of define variables
Selecting the target
parameter after choosing its
type (which block or
stream?Which physical
properties?)
Creating new target variable
Selecting variable
type

SENSIVITY ANALYSIS
Plotted variables
Sensivity options to reinitialized
modified blocks and streams
Execution options
(if chosen the selected value at the end
of the study it reinitialize the lower
bound value and will plot it on the chart)

OPTIMIZATION TOOLBOX
Create a new
optimization case

Defined variables for the
optimization
Selecting variable
location, which block
or stream and which
physical properties
selecting the type of the
variable
Creating new variables

Choosing variables in the
defined variables for the
optimization to be used later
in the Fortran tab
Minimizing or maximizing the
variable in the optimization

List of the variables
Limits of the variables
Selecting the type and
variable’s location
Selecting new variable

Writing the formula for
the optimization using
Fortran programming
(started at Row:1 Col: 7)

COUPLING WITH MATLAB
 Aspen = actxserver('Apwn.Document.34.0'); %34.0 --->V8.8; 35.0 --->V9.0; and 36.0 --->V10.0
 [stat,mess]=fileattrib; % get attributes of folder (Necessary to establish the
location of the simulation)
 Simulation_Name = 'Test'; % Aspeen Plus Simulation Name
 Aspen.invoke('InitFromArchive2',[mess.Name '' Simulation_Name '.bkp']);
 Aspen.Visible = 1; % 1 --->Aspen isVisible; 0 --->Aspen is open but not visible
 Aspen.SuppressDialogs = 1; % Suppress windows dialogs.
 Aspen.Engine.Run2(1); % Run the simulation
 Aspen.Tree.FindNode('DataBlocksABSORBERInputNSTAGE').Value=round(x(1,2)); % number
of stages absorber
 Aspen.Close;
 Aspen.Quit;

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