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aw0a |
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REQUIRE "simple_fs.a4c"; |
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(* => simple_fs.a4c, atoms.a4l, measures.a4l, system.a4l, basemodel.a4l *) |
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PROVIDE "simple_fs_ext.a4c"; |
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(* |
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* This file is part of the ASCEND Modeling Library and is released |
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* under the GNU Public License as described at the end of this file. |
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* |
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* Use of this module is demonstrated by the associated script file |
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* simple_fs_cost.a4s. |
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*) |
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UNIVERSAL MODEL stream_parameters; |
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components IS_A set OF symbol_constant; |
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MW[components] IS_A molar_weight_constant; |
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SpGr[components] IS_A factor_constant; |
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END stream_parameters; |
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MODEL mod_mixture REFINES mixture; |
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sp IS_A stream_parameters; |
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MW_ave IS_A molar_mass; |
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SpGr_ave IS_A factor; |
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sp.components, |
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components ARE_THE_SAME; |
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yw[components], |
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yv_liq[components] IS_A fraction; |
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sp.MW['A'] :== 50{g/mol}; |
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sp.MW['B'] :== 120{g/mol}; |
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sp.MW['C'] :== 120{g/mol}; |
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sp.SpGr['A'] :== 0.8; |
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sp.SpGr['B'] :== 0.8; |
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sp.SpGr['C'] :== 0.8; |
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FOR i IN components CREATE |
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yw_def[i]: yw[i]*MW_ave = y[i]*sp.MW[i]; |
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END FOR; |
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FOR i IN components CREATE |
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yv_liq_def[i]: yv_liq[i]*sp.SpGr[i] = yw[i]*SpGr_ave; |
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END FOR; |
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sum_yw: SUM[yw[components]] = 1.0; |
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sum_yv_liq: SUM[yv_liq[components]] = 1.0; |
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METHODS |
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METHOD clear; |
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y[components].fixed := FALSE; |
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yw[components].fixed := FALSE; |
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yv_liq[components].fixed := FALSE; |
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MW_ave.fixed := FALSE; |
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SpGr_ave.fixed := FALSE; |
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END clear; |
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METHOD specify; |
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y[components].fixed := TRUE; |
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y[CHOICE[components]].fixed := FALSE; |
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END specify; |
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END mod_mixture; |
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MODEL mod_stream REFINES molar_stream; |
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Wtot,w[components] IS_A mass_rate; |
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Vtot_liq,v_liq[components] IS_A volume_rate; |
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state IS_REFINED_TO mod_mixture; |
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state.components, |
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components ARE_THE_SAME; |
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Wtot_def: Wtot = Ftot*state.MW_ave; |
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Vtot_liq_def: Vtot_liq = Wtot/state.SpGr_ave; |
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FOR i IN components CREATE |
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w_def[i]: w[i] = state.yw[i]*Wtot; |
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END FOR; |
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FOR i IN components CREATE |
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v_liq_def[i]: v_liq[i] = state.yv_liq[i]*Vtot_liq; |
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END FOR; |
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METHODS |
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METHOD clear; |
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RUN state.clear; |
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Ftot.fixed := FALSE; |
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f[components].fixed := FALSE; |
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Wtot.fixed := FALSE; |
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w[components].fixed := FALSE; |
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Vtot_liq.fixed := FALSE; |
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v_liq[components].fixed := FALSE; |
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Wtot.fixed := FALSE; |
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END clear; |
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METHOD specify; |
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f[components].fixed := TRUE; |
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END specify; |
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END mod_stream; |
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(* |
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* simple_fs_ext.a4c |
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* by Arthur W. Westerberg |
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* Part of the ASCEND Library |
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* $Date: 1998/06/17 19:43:48 $ |
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* $Revision: 1.2 $ |
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* $Author: mthomas $ |
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* $Source: /afs/cs.cmu.edu/project/ascend/Repository/models/simple_fs_ext.a4c,v $ |
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* |
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* This file is part of the ASCEND Modeling Library. |
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* |
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* Copyright (C) 1994-1998 Carnegie Mellon University |
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* |
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* The ASCEND Modeling Library is free software; you can redistribute |
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* it and/or modify it under the terms of the GNU General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* The ASCEND Modeling Library is distributed in hope that it will be |
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* useful, but WITHOUT ANY WARRANTY; without even the implied |
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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* See the GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with the program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139 USA. Check |
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* the file named COPYING. |
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*) |
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