1 | #*--------------------------------------------------------------------- |
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2 | * This file is property of the author and cannot be used, copyed |
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3 | * or modified without permission. |
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4 | * |
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5 | * Copyright (C) 2002-2004 the author |
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6 | *---------------------------------------------------------------------- |
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7 | * Author: Rafael de Pelegrini Soares |
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8 | * $Id: ThreeTank1.mso 843 2009-09-03 18:36:47Z bicca $ |
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9 | *---------------------------------------------------------------------- |
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10 | * |
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11 | * Arquivo de exemplo do EMSO |
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12 | * |
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13 | *-------------------------------------------------------------------*# |
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14 | |
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15 | Model tank_simplified |
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16 | |
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17 | PARAMETERS |
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18 | pi as Real (Brief="pi number",Default=3.141592); |
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19 | k as Real (Brief="Valve Constant", Unit = 'm^2.5/h', Default=4); |
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20 | Dh as Real (Brief="Hydraulic diameter", Unit = 'm', Default=2); |
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21 | A as Real (Brief="Tank area", Unit = 'm^2'); |
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22 | |
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23 | SET |
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24 | pi = 3.141592; |
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25 | A = (pi*Dh^2)/4; |
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26 | |
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27 | VARIABLES |
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28 | V as Real (Brief="Tank Volume", Lower = 0, Unit='m^3'); |
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29 | Level as Real (Brief="Tank level", Lower = 0, Unit='m'); |
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30 | in Fin as Real (Brief="Input flow", Lower = 0, Unit='m^3/h'); |
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31 | out Fout as Real (Brief="Output flow",Lower = 0, Unit='m^3/h'); |
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32 | |
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33 | EQUATIONS |
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34 | |
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35 | "Mass balance" |
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36 | diff(V) = Fin - Fout; |
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37 | |
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38 | "Valve equation" |
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39 | Fout = k*sqrt(Level); |
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40 | |
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41 | "Tank volume" |
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42 | V = A*Level; |
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43 | |
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44 | end |
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45 | |
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46 | FlowSheet ThreeTank |
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47 | |
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48 | DEVICES |
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49 | Feed as Real (Brief="Feed Stream", Unit='m^3/h'); |
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50 | |
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51 | Tank1 as tank_simplified (Brief="First Tank"); |
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52 | Tank2 as tank_simplified (Brief="Second Tank"); |
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53 | Tank3 as tank_simplified (Brief="Third Tank"); |
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54 | |
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55 | CONNECTIONS |
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56 | Feed to Tank1.Fin; |
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57 | Tank1.Fout to Tank2.Fin; |
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58 | Tank2.Fout to Tank3.Fin; |
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59 | |
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60 | end |
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