aspenpinch教程02_EneTar_ws
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Basic Energy Targets Working Session 2
©2000 AspenTech. All Rights Reserved.
Objectives
! Enter Stream Data in Aspen Pinch? ! View Compositegets ! Identify Cross Pinch heat transfer
(oC)
(oC)
30
120
Heat Duty MW
9.72
Feed2
60
100
9.6
Product1
180
80
6
Product2
130
40
10.8
Tmin = 10篊
©2000 AspenTech. All Rights Reserved.
15
Questions
1. What are the Energy Targets at Tmin = 10篊 ?
25
Defining the connectivity- Data Input is now complete
No need to specify connectivity if the exchanger is the first on the stream
M1 is upstream of H1 in FEED1
utility stream
©2000 AspenTech. All Rights Reserved.
24
After all exchangers have been specified, we need to define the connectivity...
©2000 AspenTech. All Rights Reserved.
8
Edit Stream Data (Table View)
1 2
3
©2000 AspenTech. All Rights Reserved.
9
View Composite Curves
2
1
©2000 AspenTech. All Rights Reserved.
10
Use Plot Tools
Existing Flowsheet
40ºC
C1
80ºC
3.6
CW
Feed 1 Feed 2
30ºC
60ºC
7.2 M2
M1 6.0
70ºC 90ºC
130ºC
H1
3.72
85.6?C
HP
180ºC
H2
120ºC
2.4 HP
100ºC Reactor 1
Product 1
70ºC
85ºC 180ºC
Actual Energy Target = Target + Cross Pinch
6.12 = 2.88 + 3.24 (MW)
©2000 AspenTech. All Rights Reserved.
18
Example 1 - Composite Curves
TP(hot)=70篊 TP(cold)=60篊
©2000 AspenTech. All Rights Reserved.
27
Utility Summary View - An overview of existing utility balance is automatically generated
©2000 AspenTech. All Rights Reserved.
32
And we can View the Cross Pinch Heat Table
©2000 AspenTech. All Rights Reserved.
33
QHmin=2.88
©2000 AspenTech. All Rights Reserved.
19
3. An alternative approach to enter stream data:
Use Heat Exchanger Summary Table
©2000 AspenTech. All Rights Reserved.
©2000 AspenTech. All Rights Reserved.
17
Solution
1. Energy Targets
QHmin QCmin
2.88 MW 0.36 MW
2. Process Pinch
TP(hot) TP(cold)
70篊 60篊
3. Cross Pinch heat transfer
1 2 3 4
4
1
3 2
©2000 AspenTech. All Rights Reserved.
11
View Targeting Report
1 2
©2000 AspenTech. All Rights Reserved.
12
2. Working Session
©2000 AspenTech. All Rights Reserved.
M2 is upstream of H2 in FEED2 M2 is upstream of C1 in PRODUCT2
©2000 AspenTech. All Rights Reserved.
26
Stream View provides same information as Heat Exchanger View
Programme calculates existing performance
©2000 AspenTech. All Rights Reserved.
23
Defining Utility Exchangers
Specify utility exchangers in the same way as process-to-process exchangers and tick off the
Product 2 Reactor 2
©2000 AspenTech. All Rights Reserved.
CW
HP
= exchanger duty, MW
14
Example 1 - Stream Data
Stream Name Feed1
Supply Temperature Target Temperature
30
And if we specify process DT Min…..
©2000 AspenTech. All Rights Reserved.
31
Existing Heat Exchanger Network is generated automatically
©2000 AspenTech. All Rights Reserved.
28
Stream Data is now automatically generated
©2000 AspenTech. All Rights Reserved.
29
Utility Data is also automatically generated
©2000 AspenTech. All Rights Reserved.
©2000 AspenTech. All Rights Reserved.
2
1. Introduction to the software
©2000 AspenTech. All Rights Reserved.
The Main Aspen Pinch Window
Base directory
Aspen Pinch Aspen Pinch cases window
How to define process/proces
exchangers
For each exchanger side
Enter exchanger specify stream name,
name
temperatures, and duty
Specify exchanger design data (optional)
=
+
(MW)
©2000 AspenTech. All Rights Reserved.
16
What you have to do:
! Choose case EneTar-WS ! Input Stream Data for Example 1 ! Set Tmin=10癈 ! View Composite Curves ! Look at Targeting Report
QHmin QCmin
(MW) (MW)
2. What is the Process Pinch Temperature?
TP(hot) TP(cold)
(篊 ) (篊 )
3. What is the Cross Pinch heat Transfer?
Actual Energy Target = Target + Cross Pinch
Menu bar Tool bar
Case Manager window
Data files
©2000 AspenTech. All Rights Reserved.
4
Set Base Directory
©2000 AspenTech. All Rights Reserved.
5
Choose Project Case
Product 2 Reactor 2
©2000 AspenTech. All Rights Reserved.
CW
HP
= exchanger duty, MW
21
Create new case
©2000 AspenTech. All Rights Reserved.
22
Heat Exchanger View -
©2000 AspenTech. All Rights Reserved.
6
Set Project Units
1 2 3
©2000 AspenTech. All Rights Reserved.
7
Select Process Tmin
1 2 3
©2000 AspenTech. All Rights Reserved.
Example 1 - Process Flowsheet
40ºC
3.6
CW
80ºC
Feed 1 30ºC
6.0
3.72
85.6?C
HP
180ºC
120ºC
70ºC
Feed 2 60ºC
7.2
70ºC 90ºC
130ºC
2.4 HP
100ºC Reactor 1
85ºC 180ºC
Product 1
©2000 AspenTech. All Rights Reserved.
Objectives
! Enter Stream Data in Aspen Pinch? ! View Compositegets ! Identify Cross Pinch heat transfer
(oC)
(oC)
30
120
Heat Duty MW
9.72
Feed2
60
100
9.6
Product1
180
80
6
Product2
130
40
10.8
Tmin = 10篊
©2000 AspenTech. All Rights Reserved.
15
Questions
1. What are the Energy Targets at Tmin = 10篊 ?
25
Defining the connectivity- Data Input is now complete
No need to specify connectivity if the exchanger is the first on the stream
M1 is upstream of H1 in FEED1
utility stream
©2000 AspenTech. All Rights Reserved.
24
After all exchangers have been specified, we need to define the connectivity...
©2000 AspenTech. All Rights Reserved.
8
Edit Stream Data (Table View)
1 2
3
©2000 AspenTech. All Rights Reserved.
9
View Composite Curves
2
1
©2000 AspenTech. All Rights Reserved.
10
Use Plot Tools
Existing Flowsheet
40ºC
C1
80ºC
3.6
CW
Feed 1 Feed 2
30ºC
60ºC
7.2 M2
M1 6.0
70ºC 90ºC
130ºC
H1
3.72
85.6?C
HP
180ºC
H2
120ºC
2.4 HP
100ºC Reactor 1
Product 1
70ºC
85ºC 180ºC
Actual Energy Target = Target + Cross Pinch
6.12 = 2.88 + 3.24 (MW)
©2000 AspenTech. All Rights Reserved.
18
Example 1 - Composite Curves
TP(hot)=70篊 TP(cold)=60篊
©2000 AspenTech. All Rights Reserved.
27
Utility Summary View - An overview of existing utility balance is automatically generated
©2000 AspenTech. All Rights Reserved.
32
And we can View the Cross Pinch Heat Table
©2000 AspenTech. All Rights Reserved.
33
QHmin=2.88
©2000 AspenTech. All Rights Reserved.
19
3. An alternative approach to enter stream data:
Use Heat Exchanger Summary Table
©2000 AspenTech. All Rights Reserved.
©2000 AspenTech. All Rights Reserved.
17
Solution
1. Energy Targets
QHmin QCmin
2.88 MW 0.36 MW
2. Process Pinch
TP(hot) TP(cold)
70篊 60篊
3. Cross Pinch heat transfer
1 2 3 4
4
1
3 2
©2000 AspenTech. All Rights Reserved.
11
View Targeting Report
1 2
©2000 AspenTech. All Rights Reserved.
12
2. Working Session
©2000 AspenTech. All Rights Reserved.
M2 is upstream of H2 in FEED2 M2 is upstream of C1 in PRODUCT2
©2000 AspenTech. All Rights Reserved.
26
Stream View provides same information as Heat Exchanger View
Programme calculates existing performance
©2000 AspenTech. All Rights Reserved.
23
Defining Utility Exchangers
Specify utility exchangers in the same way as process-to-process exchangers and tick off the
Product 2 Reactor 2
©2000 AspenTech. All Rights Reserved.
CW
HP
= exchanger duty, MW
14
Example 1 - Stream Data
Stream Name Feed1
Supply Temperature Target Temperature
30
And if we specify process DT Min…..
©2000 AspenTech. All Rights Reserved.
31
Existing Heat Exchanger Network is generated automatically
©2000 AspenTech. All Rights Reserved.
28
Stream Data is now automatically generated
©2000 AspenTech. All Rights Reserved.
29
Utility Data is also automatically generated
©2000 AspenTech. All Rights Reserved.
©2000 AspenTech. All Rights Reserved.
2
1. Introduction to the software
©2000 AspenTech. All Rights Reserved.
The Main Aspen Pinch Window
Base directory
Aspen Pinch Aspen Pinch cases window
How to define process/proces
exchangers
For each exchanger side
Enter exchanger specify stream name,
name
temperatures, and duty
Specify exchanger design data (optional)
=
+
(MW)
©2000 AspenTech. All Rights Reserved.
16
What you have to do:
! Choose case EneTar-WS ! Input Stream Data for Example 1 ! Set Tmin=10癈 ! View Composite Curves ! Look at Targeting Report
QHmin QCmin
(MW) (MW)
2. What is the Process Pinch Temperature?
TP(hot) TP(cold)
(篊 ) (篊 )
3. What is the Cross Pinch heat Transfer?
Actual Energy Target = Target + Cross Pinch
Menu bar Tool bar
Case Manager window
Data files
©2000 AspenTech. All Rights Reserved.
4
Set Base Directory
©2000 AspenTech. All Rights Reserved.
5
Choose Project Case
Product 2 Reactor 2
©2000 AspenTech. All Rights Reserved.
CW
HP
= exchanger duty, MW
21
Create new case
©2000 AspenTech. All Rights Reserved.
22
Heat Exchanger View -
©2000 AspenTech. All Rights Reserved.
6
Set Project Units
1 2 3
©2000 AspenTech. All Rights Reserved.
7
Select Process Tmin
1 2 3
©2000 AspenTech. All Rights Reserved.
Example 1 - Process Flowsheet
40ºC
3.6
CW
80ºC
Feed 1 30ºC
6.0
3.72
85.6?C
HP
180ºC
120ºC
70ºC
Feed 2 60ºC
7.2
70ºC 90ºC
130ºC
2.4 HP
100ºC Reactor 1
85ºC 180ºC
Product 1