1 | #*-------------------------------------------------------------------- |
---|
2 | * Sample file for column model With Tray Efficiency Prediction |
---|
3 | *-------------------------------------------------------------------- |
---|
4 | * |
---|
5 | *---------------------------------------------------------------------- |
---|
6 | * Author: Josias J. Junges |
---|
7 | *--------------------------------------------------------------------*# |
---|
8 | |
---|
9 | using "stage_separators/column_Eff"; |
---|
10 | using "controllers/PIDIncr"; |
---|
11 | |
---|
12 | FlowSheet Sample_Distillation_kettle_cond_EffEmp |
---|
13 | PARAMETERS |
---|
14 | PP as Plugin(Brief="Physical Properties", |
---|
15 | Type="PP", |
---|
16 | Components = [ "benzene", "toluene" ], |
---|
17 | LiquidModel = "UNIFAC", |
---|
18 | VapourModel = "SRK" |
---|
19 | ); |
---|
20 | NComp as Integer; |
---|
21 | iLK as Integer; |
---|
22 | iHK as Integer; |
---|
23 | |
---|
24 | Pmin as pressure (Brief="Minimum column temperature"); |
---|
25 | Pmax as pressure (Brief="Minimum column temperature"); |
---|
26 | Qcmin as heat_rate (Brief="Minimum Condenser Heat supplied"); |
---|
27 | Qcmax as heat_rate (Brief="Maximum Condenser Heat supplied"); |
---|
28 | Hmint as length (Brief="Minimum liquid level in top tank"); |
---|
29 | Hmaxt as length (Brief="Maximum liquid level in top tank"); |
---|
30 | Hminb as length (Brief="Minimum liquid level in reboiler"); |
---|
31 | Hmaxb as length (Brief="Maximum liquid level in reboiler"); |
---|
32 | Frmin as flow_mol (Brief="Minimum bottom flow rate"); |
---|
33 | Frmax as flow_mol (Brief="Maximum bottom flow rate"); |
---|
34 | Fcmin as flow_mol (Brief="Minimum reflux flow rate"); |
---|
35 | Fcmax as flow_mol (Brief="Maximum reflux flow rate"); |
---|
36 | |
---|
37 | VARIABLES |
---|
38 | Qc as energy_source (Brief="Heat rate removed from condenser"); |
---|
39 | Qr as energy_source (Brief="Heat rate supplied to reboiler"); |
---|
40 | Padc as Real (Brief="Dimensionless pressure"); |
---|
41 | Had_top as Real (Brief="Dimensionless condenser level"); |
---|
42 | Had_bot as Real (Brief="Dimensionless reboiler level"); |
---|
43 | DF as fraction (Brief="Distillation to feed ratio"); |
---|
44 | RR as Real (Brief="Reflux ratio"); |
---|
45 | |
---|
46 | SET |
---|
47 | NComp = PP.NumberOfComponents; |
---|
48 | |
---|
49 | DEVICES |
---|
50 | |
---|
51 | col as Distillation_kettle_cond_EffEmp; |
---|
52 | feed as source; |
---|
53 | zero as stream; |
---|
54 | LCtop as PIDIncr; |
---|
55 | LCbot as PIDIncr; |
---|
56 | PCcond as PIDIncr; |
---|
57 | |
---|
58 | SET |
---|
59 | col.NTrays = 8; |
---|
60 | |
---|
61 | CONNECTIONS |
---|
62 | feed.Outlet to col.trays(4).Inlet; |
---|
63 | zero to col.reb.Inlet; |
---|
64 | zero to col.trays([1:3]).Inlet; |
---|
65 | zero to col.trays([5:col.NTrays]).Inlet; |
---|
66 | Qc.OutletQ to col.cond.InletQ; |
---|
67 | Qr.OutletQ to col.reb.InletQ; |
---|
68 | |
---|
69 | EQUATIONS |
---|
70 | |
---|
71 | "Pressure Controller Cond" |
---|
72 | PCcond.Parameters.tau = 0*'s'; |
---|
73 | PCcond.Parameters.tauSet = 0*'s'; |
---|
74 | PCcond.Parameters.alpha = 0.3; |
---|
75 | PCcond.Parameters.bias = 0.67; |
---|
76 | PCcond.Parameters.gamma = 1; |
---|
77 | PCcond.Parameters.beta = 1; |
---|
78 | PCcond.Options.action = 1; |
---|
79 | PCcond.Options.clip = 1; |
---|
80 | PCcond.Options.autoMan = 0; |
---|
81 | PCcond.Parameters.intTime = 60*'min'; |
---|
82 | PCcond.Parameters.gain = 0.1; |
---|
83 | PCcond.Parameters.derivTime = 10*'min'; |
---|
84 | PCcond.Ports.setPoint = (0.2 * 'bar' - Pmin)/(Pmax-Pmin); |
---|
85 | PCcond.Ports.input = Padc; |
---|
86 | Padc = (col.cond.OutletL.P-Pmin)/(Pmax-Pmin); |
---|
87 | Qc.OutletQ.Q = Qcmin+(Qcmax-Qcmin)*PCcond.Ports.output; |
---|
88 | |
---|
89 | "Ttop Level Controller" |
---|
90 | LCtop.Parameters.tau = 0*'s'; |
---|
91 | LCtop.Parameters.tauSet = 0*'s'; |
---|
92 | LCtop.Parameters.alpha = 0.3; |
---|
93 | LCtop.Parameters.bias = 0.5; |
---|
94 | LCtop.Parameters.gamma = 1; |
---|
95 | LCtop.Parameters.beta = 1; |
---|
96 | LCtop.Options.action = -1; |
---|
97 | LCtop.Options.clip = 1; |
---|
98 | LCtop.Options.autoMan = 0; |
---|
99 | LCtop.Parameters.intTime = 20*'min'; |
---|
100 | LCtop.Parameters.gain = 0.9; |
---|
101 | LCtop.Parameters.derivTime = 0*'s'; |
---|
102 | LCtop.Ports.setPoint = (1 * 'm' - Hmint)/(Hmaxt-Hmint); |
---|
103 | LCtop.Ports.input = Had_top; |
---|
104 | Had_top = (col.cond.Level-Hmint)/(Hmaxt-Hmint); |
---|
105 | col.sptop.Outlet2.F = Fcmin + (Fcmax-Fcmin) * LCtop.Ports.output; |
---|
106 | |
---|
107 | "Tbottom Level Controller" |
---|
108 | LCbot.Parameters.tau = 0*'s'; |
---|
109 | LCbot.Parameters.tauSet = 0*'s'; |
---|
110 | LCbot.Parameters.alpha = 0.3; |
---|
111 | LCbot.Parameters.bias = 0.5; |
---|
112 | LCbot.Parameters.gamma = 1; |
---|
113 | LCbot.Parameters.beta = 1; |
---|
114 | LCbot.Options.action = -1; |
---|
115 | LCbot.Options.clip = 1; |
---|
116 | LCbot.Options.autoMan = 0; |
---|
117 | LCbot.Parameters.intTime = 20*'min'; |
---|
118 | LCbot.Parameters.gain = 0.9; |
---|
119 | LCbot.Parameters.derivTime = 0*'s'; |
---|
120 | LCbot.Ports.setPoint = (1 * 'm' - Hminb)/(Hmaxb-Hminb); |
---|
121 | LCbot.Ports.input = Had_bot; |
---|
122 | Had_bot = (col.reb.Level-Hminb)/(Hmaxb-Hminb); |
---|
123 | col.reb.OutletL.F = Frmin + (Frmax-Frmin) * LCbot.Ports.output; |
---|
124 | |
---|
125 | DF = col.sptop.Outlet1.F / feed.Outlet.F; |
---|
126 | RR * (col.sptop.Outlet1.F + col.cond.OutletV.F) = col.sptop.Outlet2.F; |
---|
127 | |
---|
128 | SPECIFY |
---|
129 | feed.Outlet.F = 200 * 'kmol/h'; |
---|
130 | feed.Outlet.T = (60+273.15) * 'K'; |
---|
131 | feed.Outlet.P = 1 * 'bar'; |
---|
132 | feed.Outlet.z(1) = 0.6; |
---|
133 | feed.Outlet.z(2)=0.4; |
---|
134 | |
---|
135 | zero.F = 0 * 'kmol/h'; |
---|
136 | zero.T = 300 * 'K'; |
---|
137 | zero.P = 1 * 'atm'; |
---|
138 | zero.z = 1/NComp; |
---|
139 | zero.v = 0; |
---|
140 | zero.h = 0 * 'J/mol'; |
---|
141 | |
---|
142 | RR = 1; |
---|
143 | |
---|
144 | col.cond.OutletV.F = 0 * 'kmol/h'; |
---|
145 | Qr.OutletQ.Q = 1854471.14*0.985 * 'W'; |
---|
146 | col.pump1.dP = 0.0000000001* 'kPa'; |
---|
147 | |
---|
148 | col.alfaTopo = 2; |
---|
149 | |
---|
150 | #col.trays(1).Emv = 0.47806479; |
---|
151 | #col.trays(2).Emv = 0.53702951; |
---|
152 | #col.trays(3).Emv = 0.59429546; |
---|
153 | #col.trays(4).Emv = 0.63645948; |
---|
154 | #col.trays(5).Emv = 0.71892244; |
---|
155 | #col.trays(6).Emv = 0.7437489; |
---|
156 | #col.trays(7).Emv = 0.76615292; |
---|
157 | #col.trays(8).Emv = 0.79338953; |
---|
158 | |
---|
159 | #para modelo de eff |
---|
160 | col.trays.Dv = 3.2556e-6*'m^2/s'; |
---|
161 | col.trays.Dl = 6.1085e-9*'m^2/s'; |
---|
162 | col.trays(1).sigma=0.02649902*'N/m'; |
---|
163 | col.trays(2).sigma=0.02578077*'N/m'; |
---|
164 | col.trays(3).sigma=0.02510972*'N/m'; |
---|
165 | col.trays(4).sigma=0.02445816*'N/m'; |
---|
166 | col.trays(5).sigma=0.02402951*'N/m'; |
---|
167 | col.trays(6).sigma=0.02359190*'N/m'; |
---|
168 | col.trays(7).sigma=0.02311517*'N/m'; |
---|
169 | col.trays(8).sigma=0.02256425*'N/m'; |
---|
170 | |
---|
171 | SET |
---|
172 | |
---|
173 | #eff model |
---|
174 | col.trays.z = 1.35*'m'; |
---|
175 | col.trays.d = 1.85*'m'; |
---|
176 | col.trays.fi= 0.1407; |
---|
177 | col.trays.Ts= 0.5*'m'; |
---|
178 | col.trays.Aa=2.2542*'m^2'; |
---|
179 | |
---|
180 | col.trays.V = 1.344 * 'm^3'; |
---|
181 | col.trays.Ah = 0.37824 * 'm^2'; |
---|
182 | col.trays.hw = 0.052 * 'm'; |
---|
183 | col.trays.lw = 1.264 * 'm'; |
---|
184 | col.trays.Q = 0 * 'kW'; |
---|
185 | col.trays.beta = 0.65; |
---|
186 | col.trays.alfa = 23; |
---|
187 | col.trays.Ap = 2.4711 * 'm^2'; |
---|
188 | |
---|
189 | col.cond.V = 4*1.344 * 'm^3'; |
---|
190 | col.cond.Across = 2.688 * 'm^2'; |
---|
191 | |
---|
192 | col.reb.V = 4*1.344 * 'm^3'; |
---|
193 | col.reb.Across = 2.688 * 'm^2'; |
---|
194 | |
---|
195 | # Controllers type |
---|
196 | PCcond.PID_Select = "Ideal_AW"; |
---|
197 | LCtop.PID_Select = "Ideal_AW"; |
---|
198 | LCbot.PID_Select = "Ideal_AW"; |
---|
199 | |
---|
200 | Frmin = 25 * 'kmol/h'; |
---|
201 | Frmax = 115 * 'kmol/h'; |
---|
202 | Fcmin = 90 * 'kmol/h'; |
---|
203 | Fcmax = 110 * 'kmol/h'; |
---|
204 | Hmint = 0.01 * 'm'; |
---|
205 | Hmaxt = 2.0 * 'm'; |
---|
206 | Hminb = 0.01 * 'm'; |
---|
207 | Hmaxb = 2.0 * 'm'; |
---|
208 | Pmin = 0.05 * 'bar'; |
---|
209 | Pmax = 0.4 * 'bar'; |
---|
210 | Qcmax = -1e6 * 'W'; |
---|
211 | Qcmin = -4e6 * 'W'; |
---|
212 | |
---|
213 | INITIAL |
---|
214 | # condenser |
---|
215 | col.cond.OutletL.T = 309.637705*'K'; |
---|
216 | col.cond.Level = 1* 'm'; |
---|
217 | col.cond.OutletL.z([1]) = [0.93]; |
---|
218 | |
---|
219 | # reboiler |
---|
220 | col.reb.OutletL.T = 350.460542 *'K'; |
---|
221 | col.reb.Level = 1 * 'm'; |
---|
222 | col.reb.OutletL.z([1]) = [0.26]; |
---|
223 | |
---|
224 | # column trays |
---|
225 | col.trays(1).OutletL.T = 311.172941 * 'K'; |
---|
226 | col.trays(2).OutletL.T = 317.117053 * 'K'; |
---|
227 | col.trays(3).OutletL.T = 322.578424 * 'K'; |
---|
228 | col.trays(4).OutletL.T = 327.515251 * 'K'; |
---|
229 | col.trays(5).OutletL.T = 331.108803 * 'K'; |
---|
230 | col.trays(6).OutletL.T = 334.854461 * 'K'; |
---|
231 | col.trays(7).OutletL.T = 338.976196 * 'K'; |
---|
232 | col.trays(8).OutletL.T = 343.713225 * 'K'; |
---|
233 | col.trays.Level = 1.2 * col.trays.hw; |
---|
234 | col.trays(1).OutletL.z([1]) = [0.83]; |
---|
235 | col.trays(2).OutletL.z([1]) = [0.74]; |
---|
236 | col.trays(3).OutletL.z([1]) = [0.67]; |
---|
237 | col.trays(4).OutletL.z([1]) = [0.60]; |
---|
238 | col.trays(5).OutletL.z([1]) = [0.58]; |
---|
239 | col.trays(6).OutletL.z([1]) = [0.53]; |
---|
240 | col.trays(7).OutletL.z([1]) = [0.48]; |
---|
241 | col.trays(8).OutletL.z([1]) = [0.40]; |
---|
242 | |
---|
243 | OPTIONS |
---|
244 | TimeStep = 0.2; |
---|
245 | TimeEnd = 10; |
---|
246 | TimeUnit = 'h'; |
---|
247 | NLASolver (File="sundials"); |
---|
248 | DAESolver (File="mebdf"); |
---|
249 | InitialFile="Sample_Distillation_kettle_cond_EffEmp1.rlt"; |
---|
250 | #Dynamic = false; |
---|
251 | end |
---|
252 | |
---|
253 | FlowSheet Sample_Distillation_kettle_cond_EffFund |
---|
254 | PARAMETERS |
---|
255 | PP as Plugin(Brief="Physical Properties", |
---|
256 | Type="PP", |
---|
257 | Components = [ "benzene", "toluene" ], |
---|
258 | LiquidModel = "UNIFAC", |
---|
259 | VapourModel = "SRK" |
---|
260 | ); |
---|
261 | NComp as Integer; |
---|
262 | iLK as Integer; |
---|
263 | iHK as Integer; |
---|
264 | |
---|
265 | Pmin as pressure (Brief="Minimum column temperature"); |
---|
266 | Pmax as pressure (Brief="Minimum column temperature"); |
---|
267 | Qcmin as heat_rate (Brief="Minimum Condenser Heat supplied"); |
---|
268 | Qcmax as heat_rate (Brief="Maximum Condenser Heat supplied"); |
---|
269 | Hmint as length (Brief="Minimum liquid level in top tank"); |
---|
270 | Hmaxt as length (Brief="Maximum liquid level in top tank"); |
---|
271 | Hminb as length (Brief="Minimum liquid level in reboiler"); |
---|
272 | Hmaxb as length (Brief="Maximum liquid level in reboiler"); |
---|
273 | Frmin as flow_mol (Brief="Minimum bottom flow rate"); |
---|
274 | Frmax as flow_mol (Brief="Maximum bottom flow rate"); |
---|
275 | Fcmin as flow_mol (Brief="Minimum reflux flow rate"); |
---|
276 | Fcmax as flow_mol (Brief="Maximum reflux flow rate"); |
---|
277 | |
---|
278 | VARIABLES |
---|
279 | Qc as energy_source (Brief="Heat rate removed from condenser"); |
---|
280 | Qr as energy_source (Brief="Heat rate supplied to reboiler"); |
---|
281 | Padc as Real (Brief="Dimensionless pressure"); |
---|
282 | Had_top as Real (Brief="Dimensionless condenser level"); |
---|
283 | Had_bot as Real (Brief="Dimensionless reboiler level"); |
---|
284 | DF as fraction (Brief="Distillation to feed ratio"); |
---|
285 | RR as Real (Brief="Reflux ratio"); |
---|
286 | |
---|
287 | SET |
---|
288 | NComp = PP.NumberOfComponents; |
---|
289 | |
---|
290 | DEVICES |
---|
291 | |
---|
292 | col as Distillation_kettle_cond_EffFund; |
---|
293 | feed as source; |
---|
294 | zero as stream; |
---|
295 | LCtop as PIDIncr; |
---|
296 | LCbot as PIDIncr; |
---|
297 | PCcond as PIDIncr; |
---|
298 | |
---|
299 | SET |
---|
300 | col.NTrays = 8; |
---|
301 | |
---|
302 | CONNECTIONS |
---|
303 | feed.Outlet to col.trays(4).Inlet; |
---|
304 | zero to col.reb.Inlet; |
---|
305 | zero to col.trays([1:3]).Inlet; |
---|
306 | zero to col.trays([5:col.NTrays]).Inlet; |
---|
307 | Qc.OutletQ to col.cond.InletQ; |
---|
308 | Qr.OutletQ to col.reb.InletQ; |
---|
309 | |
---|
310 | EQUATIONS |
---|
311 | |
---|
312 | "Pressure Controller Cond" |
---|
313 | PCcond.Parameters.tau = 0*'s'; |
---|
314 | PCcond.Parameters.tauSet = 0*'s'; |
---|
315 | PCcond.Parameters.alpha = 0.3; |
---|
316 | PCcond.Parameters.bias = 0.67; |
---|
317 | PCcond.Parameters.gamma = 1; |
---|
318 | PCcond.Parameters.beta = 1; |
---|
319 | PCcond.Options.action = 1; |
---|
320 | PCcond.Options.clip = 1; |
---|
321 | PCcond.Options.autoMan = 0; |
---|
322 | PCcond.Parameters.intTime = 60*'min'; |
---|
323 | PCcond.Parameters.gain = 0.1; |
---|
324 | PCcond.Parameters.derivTime = 10*'min'; |
---|
325 | PCcond.Ports.setPoint = (0.2 * 'bar' - Pmin)/(Pmax-Pmin); |
---|
326 | PCcond.Ports.input = Padc; |
---|
327 | Padc = (col.cond.OutletL.P-Pmin)/(Pmax-Pmin); |
---|
328 | Qc.OutletQ.Q = Qcmin+(Qcmax-Qcmin)*PCcond.Ports.output; |
---|
329 | |
---|
330 | "Ttop Level Controller" |
---|
331 | LCtop.Parameters.tau = 0*'s'; |
---|
332 | LCtop.Parameters.tauSet = 0*'s'; |
---|
333 | LCtop.Parameters.alpha = 0.3; |
---|
334 | LCtop.Parameters.bias = 0.5; |
---|
335 | LCtop.Parameters.gamma = 1; |
---|
336 | LCtop.Parameters.beta = 1; |
---|
337 | LCtop.Options.action = -1; |
---|
338 | LCtop.Options.clip = 1; |
---|
339 | LCtop.Options.autoMan = 0; |
---|
340 | LCtop.Parameters.intTime = 20*'min'; |
---|
341 | LCtop.Parameters.gain = 0.9; |
---|
342 | LCtop.Parameters.derivTime = 0*'s'; |
---|
343 | LCtop.Ports.setPoint = (1 * 'm' - Hmint)/(Hmaxt-Hmint); |
---|
344 | LCtop.Ports.input = Had_top; |
---|
345 | Had_top = (col.cond.Level-Hmint)/(Hmaxt-Hmint); |
---|
346 | col.sptop.Outlet2.F = Fcmin + (Fcmax-Fcmin) * LCtop.Ports.output; |
---|
347 | |
---|
348 | "Tbottom Level Controller" |
---|
349 | LCbot.Parameters.tau = 0*'s'; |
---|
350 | LCbot.Parameters.tauSet = 0*'s'; |
---|
351 | LCbot.Parameters.alpha = 0.3; |
---|
352 | LCbot.Parameters.bias = 0.5; |
---|
353 | LCbot.Parameters.gamma = 1; |
---|
354 | LCbot.Parameters.beta = 1; |
---|
355 | LCbot.Options.action = -1; |
---|
356 | LCbot.Options.clip = 1; |
---|
357 | LCbot.Options.autoMan = 0; |
---|
358 | LCbot.Parameters.intTime = 20*'min'; |
---|
359 | LCbot.Parameters.gain = 0.9; |
---|
360 | LCbot.Parameters.derivTime = 0*'s'; |
---|
361 | LCbot.Ports.setPoint = (1 * 'm' - Hminb)/(Hmaxb-Hminb); |
---|
362 | LCbot.Ports.input = Had_bot; |
---|
363 | Had_bot = (col.reb.Level-Hminb)/(Hmaxb-Hminb); |
---|
364 | col.reb.OutletL.F = Frmin + (Frmax-Frmin) * LCbot.Ports.output; |
---|
365 | |
---|
366 | DF = col.sptop.Outlet1.F / feed.Outlet.F; |
---|
367 | RR * (col.sptop.Outlet1.F + col.cond.OutletV.F) = col.sptop.Outlet2.F; |
---|
368 | |
---|
369 | SPECIFY |
---|
370 | feed.Outlet.F = 200 * 'kmol/h'; |
---|
371 | feed.Outlet.T = (60+273.15) * 'K'; |
---|
372 | feed.Outlet.P = 1 * 'bar'; |
---|
373 | feed.Outlet.z(1) = 0.6; |
---|
374 | feed.Outlet.z(2)=0.4; |
---|
375 | |
---|
376 | zero.F = 0 * 'kmol/h'; |
---|
377 | zero.T = 300 * 'K'; |
---|
378 | zero.P = 1 * 'atm'; |
---|
379 | zero.z = 1/NComp; |
---|
380 | zero.v = 0; |
---|
381 | zero.h = 0 * 'J/mol'; |
---|
382 | |
---|
383 | RR = 1; |
---|
384 | |
---|
385 | col.trays.psi=1; |
---|
386 | col.trays.psi1=1; |
---|
387 | |
---|
388 | col.cond.OutletV.F = 0 * 'kmol/h'; |
---|
389 | Qr.OutletQ.Q = 1854471.14 * 'W'; |
---|
390 | col.pump1.dP = 0.000000001* 'kPa'; |
---|
391 | |
---|
392 | col.alfaTopo = 2; |
---|
393 | |
---|
394 | #*col.trays.Emv = [0.47806479 |
---|
395 | 0.53702951 |
---|
396 | 0.59429546 |
---|
397 | 0.63645948 |
---|
398 | 0.71892244 |
---|
399 | 0.7437489 |
---|
400 | 0.76615292 |
---|
401 | 0.79338953];*# |
---|
402 | |
---|
403 | #eff model |
---|
404 | col.trays.Dv = 3.2556e-6*'m^2/s'; |
---|
405 | col.trays.Dl = 6.1085e-9*'m^2/s'; |
---|
406 | col.trays(1).sigma=0.02649902*'N/m'; |
---|
407 | col.trays(2).sigma=0.02578077*'N/m'; |
---|
408 | col.trays(3).sigma=0.02510972*'N/m'; |
---|
409 | col.trays(4).sigma=0.02445816*'N/m'; |
---|
410 | col.trays(5).sigma=0.02402951*'N/m'; |
---|
411 | col.trays(6).sigma=0.02359190*'N/m'; |
---|
412 | col.trays(7).sigma=0.02311517*'N/m'; |
---|
413 | col.trays(8).sigma=0.02256425*'N/m'; |
---|
414 | |
---|
415 | SET |
---|
416 | |
---|
417 | #para modelo de eff |
---|
418 | #col.trays.z = 1.35*'m'; |
---|
419 | col.trays.d = 1.85*'m'; |
---|
420 | col.trays.fi= 0.1407; |
---|
421 | col.trays.Ts= 0.5*'m'; |
---|
422 | col.trays.Aa=2.2542*'m^2'; |
---|
423 | col.trays.dh=0.040*'m'; |
---|
424 | |
---|
425 | col.trays.V = 1.344 * 'm^3'; |
---|
426 | col.trays.Ah = 0.37824 * 'm^2'; |
---|
427 | col.trays.hw = 0.052 * 'm'; |
---|
428 | col.trays.lw = 1.264 * 'm'; |
---|
429 | col.trays.Q = 0 * 'kW'; |
---|
430 | col.trays.beta = 0.4; |
---|
431 | col.trays.alfa = 100; |
---|
432 | col.trays.Ap = 2.4711 * 'm^2'; |
---|
433 | |
---|
434 | col.cond.V = 4*1.344 * 'm^3'; |
---|
435 | col.cond.Across = 2.688 * 'm^2'; |
---|
436 | |
---|
437 | col.reb.V = 4*1.344 * 'm^3'; |
---|
438 | col.reb.Across = 2.688 * 'm^2'; |
---|
439 | |
---|
440 | # Controllers type |
---|
441 | PCcond.PID_Select = "Ideal_AW"; |
---|
442 | LCtop.PID_Select = "Ideal_AW"; |
---|
443 | LCbot.PID_Select = "Ideal_AW"; |
---|
444 | |
---|
445 | Frmin = 25 * 'kmol/h'; |
---|
446 | Frmax = 115 * 'kmol/h'; |
---|
447 | Fcmin = 90 * 'kmol/h'; |
---|
448 | Fcmax = 110 * 'kmol/h'; |
---|
449 | Hmint = 0.01 * 'm'; |
---|
450 | Hmaxt = 2.0 * 'm'; |
---|
451 | Hminb = 0.01 * 'm'; |
---|
452 | Hmaxb = 2.0 * 'm'; |
---|
453 | Pmin = 0.05 * 'bar'; |
---|
454 | Pmax = 0.4 * 'bar'; |
---|
455 | Qcmax = -1e6 * 'W'; |
---|
456 | Qcmin = -4e6 * 'W'; |
---|
457 | |
---|
458 | INITIAL |
---|
459 | # condenser |
---|
460 | col.cond.OutletL.T = 309.637705*'K'; |
---|
461 | col.cond.Level = 1* 'm'; |
---|
462 | col.cond.OutletL.z([1]) = [0.93]; |
---|
463 | |
---|
464 | # reboiler |
---|
465 | col.reb.OutletL.T = 350.460542 *'K'; |
---|
466 | col.reb.Level = 1 * 'm'; |
---|
467 | col.reb.OutletL.z([1]) = [0.26]; |
---|
468 | |
---|
469 | # column trays |
---|
470 | col.trays(1).OutletL.T = 311.172941 * 'K'; |
---|
471 | col.trays(2).OutletL.T = 317.117053 * 'K'; |
---|
472 | col.trays(3).OutletL.T = 322.578424 * 'K'; |
---|
473 | col.trays(4).OutletL.T = 327.515251 * 'K'; |
---|
474 | col.trays(5).OutletL.T = 331.108803 * 'K'; |
---|
475 | col.trays(6).OutletL.T = 334.854461 * 'K'; |
---|
476 | col.trays(7).OutletL.T = 338.976196 * 'K'; |
---|
477 | col.trays(8).OutletL.T = 343.713225 * 'K'; |
---|
478 | col.trays.Level = 1.2 * col.trays.hw; |
---|
479 | col.trays(1).OutletL.z([1]) = [0.83]; |
---|
480 | col.trays(2).OutletL.z([1]) = [0.74]; |
---|
481 | col.trays(3).OutletL.z([1]) = [0.67]; |
---|
482 | col.trays(4).OutletL.z([1]) = [0.60]; |
---|
483 | col.trays(5).OutletL.z([1]) = [0.58]; |
---|
484 | col.trays(6).OutletL.z([1]) = [0.53]; |
---|
485 | col.trays(7).OutletL.z([1]) = [0.48]; |
---|
486 | col.trays(8).OutletL.z([1]) = [0.40]; |
---|
487 | |
---|
488 | |
---|
489 | |
---|
490 | OPTIONS |
---|
491 | TimeStep = 1; |
---|
492 | TimeEnd = 30; |
---|
493 | TimeUnit = 'h'; |
---|
494 | NLASolver (File="sundials"); |
---|
495 | DAESolver (File="mebdf"); |
---|
496 | InitialFile="Sample_Distillation_kettle_cond_EffFund1.rlt"; |
---|
497 | #Dynamic = false; |
---|
498 | end |
---|
499 | |
---|
500 | FlowSheet Sample_Distillation_kettle_cond_EffEmp_Multi |
---|
501 | PARAMETERS |
---|
502 | PP as Plugin(Brief="Physical Properties", |
---|
503 | Type="PP", |
---|
504 | Components = [ "benzene", "toluene", "p-xylene" ], |
---|
505 | LiquidModel = "UNIFAC", |
---|
506 | VapourModel = "SRK" |
---|
507 | ); |
---|
508 | NComp as Integer; |
---|
509 | iLK as Integer; |
---|
510 | iHK as Integer; |
---|
511 | |
---|
512 | Pmin as pressure (Brief="Minimum column temperature"); |
---|
513 | Pmax as pressure (Brief="Minimum column temperature"); |
---|
514 | Qcmin as heat_rate (Brief="Minimum Condenser Heat supplied"); |
---|
515 | Qcmax as heat_rate (Brief="Maximum Condenser Heat supplied"); |
---|
516 | Hmint as length (Brief="Minimum liquid level in top tank"); |
---|
517 | Hmaxt as length (Brief="Maximum liquid level in top tank"); |
---|
518 | Hminb as length (Brief="Minimum liquid level in reboiler"); |
---|
519 | Hmaxb as length (Brief="Maximum liquid level in reboiler"); |
---|
520 | Frmin as flow_mol (Brief="Minimum bottom flow rate"); |
---|
521 | Frmax as flow_mol (Brief="Maximum bottom flow rate"); |
---|
522 | Fcmin as flow_mol (Brief="Minimum reflux flow rate"); |
---|
523 | Fcmax as flow_mol (Brief="Maximum reflux flow rate"); |
---|
524 | |
---|
525 | VARIABLES |
---|
526 | Qc as energy_source (Brief="Heat rate removed from condenser"); |
---|
527 | Qr as energy_source (Brief="Heat rate supplied to reboiler"); |
---|
528 | Padc as Real (Brief="Dimensionless pressure"); |
---|
529 | Had_top as Real (Brief="Dimensionless condenser level"); |
---|
530 | Had_bot as Real (Brief="Dimensionless reboiler level"); |
---|
531 | DF as fraction (Brief="Distillation to feed ratio"); |
---|
532 | RR as Real (Brief="Reflux ratio"); |
---|
533 | |
---|
534 | SET |
---|
535 | NComp = PP.NumberOfComponents; |
---|
536 | iLK=1; |
---|
537 | iHK=3; |
---|
538 | |
---|
539 | DEVICES |
---|
540 | |
---|
541 | col as Distillation_kettle_cond_EffEmp; |
---|
542 | feed as source; |
---|
543 | zero as stream; |
---|
544 | LCtop as PIDIncr; |
---|
545 | LCbot as PIDIncr; |
---|
546 | PCcond as PIDIncr; |
---|
547 | |
---|
548 | SET |
---|
549 | col.NTrays = 8; |
---|
550 | |
---|
551 | CONNECTIONS |
---|
552 | feed.Outlet to col.trays(4).Inlet; |
---|
553 | zero to col.reb.Inlet; |
---|
554 | zero to col.trays([1:3]).Inlet; |
---|
555 | zero to col.trays([5:col.NTrays]).Inlet; |
---|
556 | Qc.OutletQ to col.cond.InletQ; |
---|
557 | Qr.OutletQ to col.reb.InletQ; |
---|
558 | |
---|
559 | EQUATIONS |
---|
560 | |
---|
561 | "Pressure Controller Cond" |
---|
562 | PCcond.Parameters.tau = 0*'s'; |
---|
563 | PCcond.Parameters.tauSet = 0*'s'; |
---|
564 | PCcond.Parameters.alpha = 0.3; |
---|
565 | PCcond.Parameters.bias = 0.67; |
---|
566 | PCcond.Parameters.gamma = 1; |
---|
567 | PCcond.Parameters.beta = 1; |
---|
568 | PCcond.Options.action = 1; |
---|
569 | PCcond.Options.clip = 1; |
---|
570 | PCcond.Options.autoMan = 0; |
---|
571 | PCcond.Parameters.intTime = 60*'min'; |
---|
572 | PCcond.Parameters.gain = 0.1; |
---|
573 | PCcond.Parameters.derivTime = 10*'min'; |
---|
574 | PCcond.Ports.setPoint = (0.2 * 'bar' - Pmin)/(Pmax-Pmin); |
---|
575 | PCcond.Ports.input = Padc; |
---|
576 | Padc = (col.cond.OutletL.P-Pmin)/(Pmax-Pmin); |
---|
577 | Qc.OutletQ.Q = Qcmin+(Qcmax-Qcmin)*PCcond.Ports.output; |
---|
578 | |
---|
579 | "Ttop Level Controller" |
---|
580 | LCtop.Parameters.tau = 0*'s'; |
---|
581 | LCtop.Parameters.tauSet = 0*'s'; |
---|
582 | LCtop.Parameters.alpha = 0.3; |
---|
583 | LCtop.Parameters.bias = 0.5; |
---|
584 | LCtop.Parameters.gamma = 1; |
---|
585 | LCtop.Parameters.beta = 1; |
---|
586 | LCtop.Options.action = -1; |
---|
587 | LCtop.Options.clip = 1; |
---|
588 | LCtop.Options.autoMan = 0; |
---|
589 | LCtop.Parameters.intTime = 20*'min'; |
---|
590 | LCtop.Parameters.gain = 0.9; |
---|
591 | LCtop.Parameters.derivTime = 0*'s'; |
---|
592 | LCtop.Ports.setPoint = (1 * 'm' - Hmint)/(Hmaxt-Hmint); |
---|
593 | LCtop.Ports.input = Had_top; |
---|
594 | Had_top = (col.cond.Level-Hmint)/(Hmaxt-Hmint); |
---|
595 | col.sptop.Outlet2.F = Fcmin + (Fcmax-Fcmin) * LCtop.Ports.output; |
---|
596 | |
---|
597 | "Tbottom Level Controller" |
---|
598 | LCbot.Parameters.tau = 0*'s'; |
---|
599 | LCbot.Parameters.tauSet = 0*'s'; |
---|
600 | LCbot.Parameters.alpha = 0.3; |
---|
601 | LCbot.Parameters.bias = 0.5; |
---|
602 | LCbot.Parameters.gamma = 1; |
---|
603 | LCbot.Parameters.beta = 1; |
---|
604 | LCbot.Options.action = -1; |
---|
605 | LCbot.Options.clip = 1; |
---|
606 | LCbot.Options.autoMan = 0; |
---|
607 | LCbot.Parameters.intTime = 20*'min'; |
---|
608 | LCbot.Parameters.gain = 0.9; |
---|
609 | LCbot.Parameters.derivTime = 0*'s'; |
---|
610 | LCbot.Ports.setPoint = (1 * 'm' - Hminb)/(Hmaxb-Hminb); |
---|
611 | LCbot.Ports.input = Had_bot; |
---|
612 | Had_bot = (col.reb.Level-Hminb)/(Hmaxb-Hminb); |
---|
613 | col.reb.OutletL.F = Frmin + (Frmax-Frmin) * LCbot.Ports.output; |
---|
614 | |
---|
615 | DF = col.sptop.Outlet1.F / feed.Outlet.F; |
---|
616 | RR * (col.sptop.Outlet1.F + col.cond.OutletV.F) = col.sptop.Outlet2.F; |
---|
617 | |
---|
618 | SPECIFY |
---|
619 | feed.Outlet.F = 200 * 'kmol/h'; |
---|
620 | feed.Outlet.T = (60+273.15) * 'K'; |
---|
621 | feed.Outlet.P = 1 * 'bar'; |
---|
622 | feed.Outlet.z(1) = 0.5; |
---|
623 | feed.Outlet.z(2)=0.4; |
---|
624 | feed.Outlet.z(3)=0.1; |
---|
625 | |
---|
626 | |
---|
627 | zero.F = 0 * 'kmol/h'; |
---|
628 | zero.T = 300 * 'K'; |
---|
629 | zero.P = 1 * 'atm'; |
---|
630 | zero.z = 1/NComp; |
---|
631 | zero.v = 0; |
---|
632 | zero.h = 0 * 'J/mol'; |
---|
633 | |
---|
634 | RR = 1; |
---|
635 | |
---|
636 | col.cond.OutletV.F = 0 * 'kmol/h'; |
---|
637 | Qr.OutletQ.Q = 1854471.14* 'W'; |
---|
638 | col.pump1.dP = 0.0000000001* 'kPa'; |
---|
639 | |
---|
640 | col.alfaTopo = 2; |
---|
641 | |
---|
642 | #col.trays(1).Emv = 0.47806479; |
---|
643 | #col.trays(2).Emv = 0.53702951; |
---|
644 | #col.trays(3).Emv = 0.59429546; |
---|
645 | #col.trays(4).Emv = 0.63645948; |
---|
646 | #col.trays(5).Emv = 0.71892244; |
---|
647 | #col.trays(6).Emv = 0.7437489; |
---|
648 | #col.trays(7).Emv = 0.76615292; |
---|
649 | #col.trays(8).Emv = 0.79338953; |
---|
650 | |
---|
651 | #eff model |
---|
652 | col.trays.Dv = 3.2556e-6*'m^2/s'; |
---|
653 | col.trays.Dl = 6.1085e-9*'m^2/s'; |
---|
654 | col.trays(1).sigma=0.02649902*'N/m'; |
---|
655 | col.trays(2).sigma=0.02578077*'N/m'; |
---|
656 | col.trays(3).sigma=0.02510972*'N/m'; |
---|
657 | col.trays(4).sigma=0.02445816*'N/m'; |
---|
658 | col.trays(5).sigma=0.02402951*'N/m'; |
---|
659 | col.trays(6).sigma=0.02359190*'N/m'; |
---|
660 | col.trays(7).sigma=0.02311517*'N/m'; |
---|
661 | col.trays(8).sigma=0.02256425*'N/m'; |
---|
662 | |
---|
663 | SET |
---|
664 | |
---|
665 | #para modelo de eff |
---|
666 | col.trays.z = 1.35*'m'; |
---|
667 | col.trays.d = 1.85*'m'; |
---|
668 | col.trays.fi= 0.1407; |
---|
669 | col.trays.Ts= 0.5*'m'; |
---|
670 | col.trays.Aa=2.2542*'m^2'; |
---|
671 | |
---|
672 | col.trays.V = 1.344 * 'm^3'; |
---|
673 | col.trays.Ah = 0.37824 * 'm^2'; |
---|
674 | col.trays.hw = 0.052 * 'm'; |
---|
675 | col.trays.lw = 1.264 * 'm'; |
---|
676 | col.trays.Q = 0 * 'kW'; |
---|
677 | col.trays.beta = 0.4; |
---|
678 | col.trays.alfa = 18; |
---|
679 | col.trays.Ap = 2.4711 * 'm^2'; |
---|
680 | |
---|
681 | col.cond.V = 4*1.344 * 'm^3'; |
---|
682 | col.cond.Across = 2.688 * 'm^2'; |
---|
683 | |
---|
684 | col.reb.V = 4*1.344 * 'm^3'; |
---|
685 | col.reb.Across = 2.688 * 'm^2'; |
---|
686 | |
---|
687 | # Controllers type |
---|
688 | PCcond.PID_Select = "Ideal_AW"; |
---|
689 | LCtop.PID_Select = "Ideal_AW"; |
---|
690 | LCbot.PID_Select = "Ideal_AW"; |
---|
691 | |
---|
692 | Frmin = 25 * 'kmol/h'; |
---|
693 | Frmax = 115 * 'kmol/h'; |
---|
694 | Fcmin = 90 * 'kmol/h'; |
---|
695 | Fcmax = 110 * 'kmol/h'; |
---|
696 | Hmint = 0.01 * 'm'; |
---|
697 | Hmaxt = 2.0 * 'm'; |
---|
698 | Hminb = 0.01 * 'm'; |
---|
699 | Hmaxb = 2.0 * 'm'; |
---|
700 | Pmin = 0.05 * 'bar'; |
---|
701 | Pmax = 0.4 * 'bar'; |
---|
702 | Qcmax = -1e6 * 'W'; |
---|
703 | Qcmin = -4e6 * 'W'; |
---|
704 | |
---|
705 | INITIAL |
---|
706 | # condenser |
---|
707 | col.cond.OutletL.T = 310.87*'K'; |
---|
708 | col.cond.Level = 1* 'm'; |
---|
709 | col.cond.OutletL.z([1 2]) = [0.86 0.13]; |
---|
710 | |
---|
711 | # reboiler |
---|
712 | col.reb.OutletL.T = 358.45 *'K'; |
---|
713 | col.reb.Level = 1 * 'm'; |
---|
714 | col.reb.OutletL.z([1 2]) = [0.135 0.66]; |
---|
715 | |
---|
716 | # column trays |
---|
717 | col.trays(1).OutletL.T = 312.625461 * 'K'; |
---|
718 | col.trays(2).OutletL.T = 318.954211* 'K'; |
---|
719 | col.trays(3).OutletL.T = 324.962929 * 'K'; |
---|
720 | col.trays(4).OutletL.T = 331.041158 * 'K'; |
---|
721 | col.trays(5).OutletL.T = 335.259862 * 'K'; |
---|
722 | col.trays(6).OutletL.T = 339.7895 * 'K'; |
---|
723 | col.trays(7).OutletL.T = 344.823955 * 'K'; |
---|
724 | col.trays(8).OutletL.T = 350.486538 * 'K'; |
---|
725 | |
---|
726 | col.trays.Level = 1.2 * col.trays.hw; |
---|
727 | col.trays(1).OutletL.z([1 2]) = [0.77 0.21]; |
---|
728 | col.trays(2).OutletL.z([1 2]) = [0.67 0.30]; |
---|
729 | col.trays(3).OutletL.z([1 2]) = [0.58 0.38]; |
---|
730 | col.trays(4).OutletL.z([1 2]) = [0.49 0.42]; |
---|
731 | col.trays(5).OutletL.z([1 2]) = [0.45 0.45]; |
---|
732 | col.trays(6).OutletL.z([1 2]) = [0.41 0.50]; |
---|
733 | col.trays(7).OutletL.z([1 2]) = [0.33 0.57]; |
---|
734 | col.trays(8).OutletL.z([1 2]) = [0.24 0.63]; |
---|
735 | |
---|
736 | OPTIONS |
---|
737 | TimeStep = 1; |
---|
738 | TimeEnd = 30; |
---|
739 | TimeUnit = 'h'; |
---|
740 | NLASolver (File="sundials"); |
---|
741 | DAESolver (File="mebdf"); |
---|
742 | #GuessFile="Sample_Distillation_kettle_cond_EffEmp_sem_eff.rlt"; |
---|
743 | InitialFile="Sample_Distillation_kettle_cond_EffEmp_Multi1.rlt"; |
---|
744 | #Dynamic = false; |
---|
745 | end |
---|
746 | |
---|
747 | FlowSheet Sample_Distillation_kettle_cond_EffFund_Dual |
---|
748 | PARAMETERS |
---|
749 | PP as Plugin(Brief="Physical Properties", |
---|
750 | Type="PP", |
---|
751 | Components = [ "propane", "propylene" ], |
---|
752 | LiquidModel = "PR", |
---|
753 | VapourModel = "PR" |
---|
754 | ); |
---|
755 | NComp as Integer; |
---|
756 | iLK as Integer; |
---|
757 | iHK as Integer; |
---|
758 | |
---|
759 | Pcmin as pressure (Brief="Minimum column temperature"); |
---|
760 | Pcmax as pressure (Brief="Minimum column temperature"); |
---|
761 | Qcmin as heat_rate (Brief="Minimum Condenser Heat supplied"); |
---|
762 | Qcmax as heat_rate (Brief="Maximum Condenser Heat supplied"); |
---|
763 | Hmint as length (Brief="Minimum liquid level in top tank"); |
---|
764 | Hmaxt as length (Brief="Maximum liquid level in top tank"); |
---|
765 | Hminb as length (Brief="Minimum liquid level in reboiler"); |
---|
766 | Hmaxb as length (Brief="Maximum liquid level in reboiler"); |
---|
767 | Frmin as flow_mol (Brief="Minimum bottom flow rate"); |
---|
768 | Frmax as flow_mol (Brief="Maximum bottom flow rate"); |
---|
769 | Fcmin as flow_mol (Brief="Minimum reflux flow rate"); |
---|
770 | Fcmax as flow_mol (Brief="Maximum reflux flow rate"); |
---|
771 | |
---|
772 | VARIABLES |
---|
773 | Qc as energy_source (Brief="Heat rate removed from condenser"); |
---|
774 | Qr as energy_source (Brief="Heat rate supplied to reboiler"); |
---|
775 | Padc as Real (Brief="Dimensionless pressure"); |
---|
776 | Had_top as Real (Brief="Dimensionless condenser level"); |
---|
777 | Had_bot as Real (Brief="Dimensionless reboiler level"); |
---|
778 | DF as fraction (Brief="Distillation to feed ratio"); |
---|
779 | RR as Real (Brief="Reflux ratio"); |
---|
780 | |
---|
781 | SET |
---|
782 | NComp = PP.NumberOfComponents; |
---|
783 | |
---|
784 | DEVICES |
---|
785 | |
---|
786 | col as Distillation_kettle_cond_EffFund; |
---|
787 | feed as source; |
---|
788 | zero as stream; |
---|
789 | LCtop as PIDIncr; |
---|
790 | LCbot as PIDIncr; |
---|
791 | PCcond as PIDIncr; |
---|
792 | |
---|
793 | |
---|
794 | SET |
---|
795 | col.NTrays = 8; |
---|
796 | col.trays.tray_type = "Dualflow"; |
---|
797 | |
---|
798 | CONNECTIONS |
---|
799 | feed.Outlet to col.trays(4).Inlet; |
---|
800 | zero to col.reb.Inlet; |
---|
801 | zero to col.trays([1:3]).Inlet; |
---|
802 | zero to col.trays([5:col.NTrays]).Inlet; |
---|
803 | Qc.OutletQ to col.cond.InletQ; |
---|
804 | Qr.OutletQ to col.reb.InletQ; |
---|
805 | |
---|
806 | EQUATIONS |
---|
807 | |
---|
808 | "Pressure Controller Cond" |
---|
809 | PCcond.Parameters.tau = 0*'s'; |
---|
810 | PCcond.Parameters.tauSet = 0*'s'; |
---|
811 | PCcond.Parameters.alpha = 0.3; |
---|
812 | PCcond.Parameters.bias = 0.67; |
---|
813 | PCcond.Parameters.gamma = 1; |
---|
814 | PCcond.Parameters.beta = 1; |
---|
815 | PCcond.Options.action = 1; |
---|
816 | PCcond.Options.clip = 1; |
---|
817 | PCcond.Options.autoMan = 0; |
---|
818 | PCcond.Parameters.intTime = 60*'s'; |
---|
819 | PCcond.Parameters.gain = 0.6; |
---|
820 | PCcond.Parameters.derivTime = 1*'s'; |
---|
821 | PCcond.Ports.setPoint = (10 * 'bar' - Pcmin)/(Pcmax-Pcmin); |
---|
822 | PCcond.Ports.input = Padc; |
---|
823 | Padc = (col.cond.OutletL.P-Pcmin)/(Pcmax-Pcmin); |
---|
824 | Qc.OutletQ.Q = Qcmin+(Qcmax-Qcmin)*PCcond.Ports.output; |
---|
825 | |
---|
826 | "Ttop Level Controller" |
---|
827 | LCtop.Parameters.tau = 0*'s'; |
---|
828 | LCtop.Parameters.tauSet = 0*'s'; |
---|
829 | LCtop.Parameters.alpha = 0.3; |
---|
830 | LCtop.Parameters.bias = 0.5; |
---|
831 | LCtop.Parameters.gamma = 1; |
---|
832 | LCtop.Parameters.beta = 1; |
---|
833 | LCtop.Options.action = -1; |
---|
834 | LCtop.Options.clip = 1; |
---|
835 | LCtop.Options.autoMan = 0; |
---|
836 | LCtop.Parameters.intTime = 20*'min'; |
---|
837 | LCtop.Parameters.gain = 0.9; |
---|
838 | LCtop.Parameters.derivTime = 0*'s'; |
---|
839 | LCtop.Ports.setPoint = (2 * 'm' - Hmint)/(Hmaxt-Hmint); |
---|
840 | LCtop.Ports.input = Had_top; |
---|
841 | Had_top = (col.cond.Level-Hmint)/(Hmaxt-Hmint); |
---|
842 | col.sptop.Outlet2.F = Fcmin + (Fcmax-Fcmin) * LCtop.Ports.output; |
---|
843 | |
---|
844 | "Tbottom Level Controller" |
---|
845 | LCbot.Parameters.tau = 0*'s'; |
---|
846 | LCbot.Parameters.tauSet = 0*'s'; |
---|
847 | LCbot.Parameters.alpha = 0.3; |
---|
848 | LCbot.Parameters.bias = 0.5; |
---|
849 | LCbot.Parameters.gamma = 1; |
---|
850 | LCbot.Parameters.beta = 1; |
---|
851 | LCbot.Options.action = -1; |
---|
852 | LCbot.Options.clip = 1; |
---|
853 | LCbot.Options.autoMan = 0; |
---|
854 | LCbot.Parameters.intTime = 20*'min'; |
---|
855 | LCbot.Parameters.gain = 0.9; |
---|
856 | LCbot.Parameters.derivTime = 0*'s'; |
---|
857 | LCbot.Ports.setPoint = (2 * 'm' - Hminb)/(Hmaxb-Hminb); |
---|
858 | LCbot.Ports.input = Had_bot; |
---|
859 | Had_bot = (col.reb.Level-Hminb)/(Hmaxb-Hminb); |
---|
860 | col.reb.OutletL.F = Frmin + (Frmax-Frmin) * LCbot.Ports.output; |
---|
861 | |
---|
862 | DF = col.sptop.Outlet1.F / feed.Outlet.F; |
---|
863 | RR * (col.sptop.Outlet1.F + col.cond.OutletV.F) = col.sptop.Outlet2.F; |
---|
864 | |
---|
865 | "Correction factor of liquid entrainment in dualflow trays" |
---|
866 | col.trays.psi=1.9771*col.trays.ff-1.4857; |
---|
867 | col.trays.psi1=-0.9333*col.trays.ff+0.94; |
---|
868 | |
---|
869 | SPECIFY |
---|
870 | feed.Outlet.F = 800 * 'kmol/h'; |
---|
871 | feed.Outlet.T = (33.1+273.15) * 'K'; |
---|
872 | feed.Outlet.P = 11.25 * 'bar'; |
---|
873 | feed.Outlet.z(1) = 0.1; |
---|
874 | feed.Outlet.z(2)=0.9; |
---|
875 | |
---|
876 | zero.F = 0 * 'kmol/h'; |
---|
877 | zero.T = 300 * 'K'; |
---|
878 | zero.P = 1 * 'atm'; |
---|
879 | zero.z = 1/NComp; |
---|
880 | zero.v = 0; |
---|
881 | zero.h = 0 * 'J/mol'; |
---|
882 | |
---|
883 | RR = 15; |
---|
884 | |
---|
885 | col.cond.OutletV.F = 0 * 'kmol/h'; |
---|
886 | Qr.OutletQ.Q = 27582461.8 * 'W'; |
---|
887 | col.pump1.dP = 0.0000000001* 'kPa'; |
---|
888 | |
---|
889 | |
---|
890 | col.alfaTopo = 2; |
---|
891 | |
---|
892 | #col.trays.Emv = 0.75; |
---|
893 | |
---|
894 | #para modelo de eff |
---|
895 | col.trays.Dv = 4.64e-7*'m^2/s'; |
---|
896 | col.trays.Dl = 1.3e-8*'m^2/s'; |
---|
897 | col.trays.sigma=[0.00762423 |
---|
898 | 0.00750252 |
---|
899 | 0.00738331 |
---|
900 | 0.00726649 |
---|
901 | 0.00715206 |
---|
902 | 0.00703969 |
---|
903 | 0.00692930 |
---|
904 | 0.00682079]*'N/m'; |
---|
905 | |
---|
906 | SET |
---|
907 | |
---|
908 | #para modelo de eff |
---|
909 | #col.trays.z = 1.35*'m'; |
---|
910 | col.trays.d = 4.4*'m'; |
---|
911 | col.trays.fi= 0.2074; |
---|
912 | col.trays.Ts= 0.4*'m'; |
---|
913 | col.trays.T= 0.0025*'m'; |
---|
914 | col.trays.Aa=15.205*'m^2'; |
---|
915 | col.trays.dh=0.009*'m'; |
---|
916 | |
---|
917 | col.trays.V = 6.08 * 'm^3'; |
---|
918 | col.trays.Ah = 3.15447 * 'm^2'; |
---|
919 | col.trays.hw = 0.052 * 'm'; |
---|
920 | col.trays.lw = 1.264 * 'm'; |
---|
921 | col.trays.Q = 0 * 'kW'; |
---|
922 | col.trays.beta = 0.25;#fluxo de liquido |
---|
923 | col.trays.alfa =80;#parametro de ajuste para queda de pressão |
---|
924 | col.trays.Ap = 15.205 * 'm^2'; |
---|
925 | |
---|
926 | col.cond.V = 10*6.08 * 'm^3'; |
---|
927 | col.cond.Across = 18 * 'm^2'; |
---|
928 | |
---|
929 | col.reb.V = 10*6.08 * 'm^3'; |
---|
930 | col.reb.Across = 20 * 'm^2'; |
---|
931 | |
---|
932 | # Controllers type |
---|
933 | PCcond.PID_Select = "Ideal_AW"; |
---|
934 | LCtop.PID_Select = "Ideal_AW"; |
---|
935 | LCbot.PID_Select = "Ideal_AW"; |
---|
936 | |
---|
937 | Frmin = 120 * 'kmol/h'; |
---|
938 | Frmax = 400 * 'kmol/h'; |
---|
939 | Fcmin = 6800 * 'kmol/h'; |
---|
940 | Fcmax = 7500 * 'kmol/h'; |
---|
941 | Hmint = 0.01 * 'm'; |
---|
942 | Hmaxt = 2.5 * 'm'; |
---|
943 | Hminb = 0.01 * 'm'; |
---|
944 | Hmaxb = 2.5 * 'm'; |
---|
945 | Pcmin = 8 * 'bar'; |
---|
946 | Pcmax = 12 * 'bar'; |
---|
947 | Qcmax = -15e6 * 'W'; |
---|
948 | Qcmin = -30e6 * 'W'; |
---|
949 | |
---|
950 | |
---|
951 | INITIAL |
---|
952 | # condenser |
---|
953 | col.cond.OutletL.T = 292.473621*'K'; |
---|
954 | col.cond.Level = 2* 'm'; |
---|
955 | col.cond.OutletL.z([1]) = [0.0842132]; |
---|
956 | |
---|
957 | # reboiler |
---|
958 | col.reb.OutletL.T = 299.8068 *'K'; |
---|
959 | col.reb.Level = 1 * 'm'; |
---|
960 | col.reb.OutletL.z([1]) = [0.1236802]; |
---|
961 | |
---|
962 | # column trays |
---|
963 | col.trays.OutletL.T = [292.497341 |
---|
964 | 293.463727 |
---|
965 | 294.413253 |
---|
966 | 295.346614 |
---|
967 | 296.263841 |
---|
968 | 297.167167 |
---|
969 | 298.05727 |
---|
970 | 298.934812] * 'K'; |
---|
971 | |
---|
972 | col.trays.Level = 1 * col.trays.hw; |
---|
973 | col.trays.OutletL.z([1]) = [0.08822571 |
---|
974 | 0.09221042 |
---|
975 | 0.09616891 |
---|
976 | 0.10010309 |
---|
977 | 0.1038177 |
---|
978 | 0.10781901 |
---|
979 | 0.11213108 |
---|
980 | 0.1167803]; |
---|
981 | |
---|
982 | |
---|
983 | OPTIONS |
---|
984 | TimeStep = 100; |
---|
985 | TimeEnd = 3600; |
---|
986 | TimeUnit = 's'; |
---|
987 | NLASolver (File="sundials"); |
---|
988 | DAESolver (File="mebdf", RelativeAccuracy=1e-4, AbsoluteAccuracy=1e-4); |
---|
989 | InitialFile="Sample_Distillation_kettle_cond_EffFund_Dual1.rlt"; |
---|
990 | #Dynamic = false; |
---|
991 | end |
---|