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1 # This file is part of the ASCEND Modeling Library and is released
2 # under the GNU Public License as described at the end of this file.
3 #
4 # This file demonstrates the use of ASCEND's "STUDY ... VARYING"
5 # construct for doing case studies
6
7 DELETE TYPES;
8 READ FILE "ben/benflash.a4l";
9 COMPILE t OF test_vapor_liquid_flash;
10 RUN {t.defaults};
11 BROWSE {t};
12 RUN {t.values};
13 RUN {t.reset};
14 SOLVE {t} WITH QRSlv;
15
16 STUDY {Liqout.f['n_pentane']} {Liqout.f['n_hexane']} {Liqout.f['n_heptane']} \
17 IN t \
18 VARYING {Feed.f['n_hexane'] {1 mole/s} {2 mole/s} {3 mole/s} {4 mole/s} {5 mole/s} {6 mole/s} {7 mole/s} {8 mole/s}} \
19 USING QRSlv \
20 OUTFILE /tmp/sl.dat \
21 ERROR STOP;
22
23 ASCPLOT /tmp/sl.dat
24
25 # The following does not work because WRITE_VIRTUAL doesn't support
26 # saving boolean state and because of the complexity of dealing with
27 # DOF and the need to rerun methods before solving. In general, we do
28 # not yet support case studies over discrete variables, though with
29 # minor work we probably could.
30 STUDY {Liqout.f['n_pentane']} {Liqout.f['n_hexane']} {Liqout.f['n_heptane']} \
31 IN t VARYING {equilibrated 0 1} \
32 USING QRSlv OUTFILE /tmp/sl ERROR STOP;
33
34 # now do an interesting case study instead of just generating
35 # some sort of flash curve.
36 # generate an optimum curve.
37 # To do this, load and explore simple_fs_cost.a4s.
38
39 ########## casestudy.a4s ends here ##########
40 #
41 # casestudy.a4s
42 # by Ben Allen
43 # January 27, 1998
44 # Part of the ASCEND Library
45 # $Date: 1998/06/17 20:08:27 $
46 # $Revision: 1.3 $
47 # $Author: mthomas $
48 # $Source: /afs/cs.cmu.edu/project/ascend/Repository/models/casestudy.a4s,v $
49 #
50 # This file is part of the ASCEND Modeling Library.
51 #
52 # Copyright (C) 1998 Carnegie Mellon University
53 #
54 # The ASCEND Modeling Library is free software. You can redistribute
55 # it and/or modify it under the terms of the GNU General Public
56 # License as published by the Free Software Foundation---either
57 # version 2 of the License, or (at your option) any later version.
58 #
59 # The ASCEND Modeling Library is distributed in hope that it
60 # will be useful, but WITHOUT ANY WARRANTY--without even the implied
61 # warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
62 # See the GNU General Public License for more details.
63 #
64 # You should have received a copy of the GNU General Public License
65 # along with the program. If not, write to the Free Software
66 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139 USA. Check
67 # the file named COPYING.

john.pye@anu.edu.au
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