Changeset 885
- Timestamp:
- Nov 13, 2009, 1:23:17 PM (13 years ago)
- File:
-
- 1 edited
-
branches/gui/eml/stage_separators/column.mso (modified) (3 diffs)
Legend:
- Unmodified
- Added
- Removed
-
branches/gui/eml/stage_separators/column.mso
r878 r885 647 647 648 648 649 Model Packed_Section_ColumnBasic 650 651 ATTRIBUTES 652 Pallete = false; 653 Icon = "icon/PackedSectionColumn"; 654 Brief = "Model of a packed column section."; 655 Info = 656 "== Model of a packed column section containing == 657 * NStages theoretical stages. 658 659 == Specify == 660 * the feed stream of each tray (Inlet); 661 * the InletLiquid stream of the top tray; 662 * the InletVapour stream of the bottom tray; 663 * the total pressure drop (dP) of the section. 664 665 == Initial Conditions == 666 * the stages temperature (OutletLiquid.T); 667 * the stages liquid holdup; 668 * (NoComps - 1) OutletLiquid (OR OutletVapour) compositions for each tray. 669 "; 670 671 PARAMETERS 672 673 outer PP as Plugin (Brief = "External Physical Properties", Type="PP"); 674 outer NComp as Integer (Brief="Number of components",Protected=true); 675 676 677 NumberOfFeeds as Integer (Brief="Number of Feed Stages",Default=3,Protected=true); 678 NumberOfStages as Integer (Brief="Number of Stages", Default=3); 679 FeedStageLocation(NumberOfFeeds) as Integer (Brief="Feed Stage Location",Default=2); 680 681 PackingHeight as length (Brief="Height of packing"); 682 HeatSupply as heat_rate (Brief="Rate of heat supply"); 683 ColumnDiameter as length (Brief="Column diameter"); 684 VoidFraction as Real (Brief="Void fraction of packing, (m^3 void space/m^3 packed bed)"); 685 ResistanceCoeff as positive (Brief="Resistance coefficient on the liquid load", Default=1); 686 AreaPerPackingVol as Real (Brief="surface area per packing volume", Unit='m^2/m^3'); 687 HETP as length (Brief="The Height Equivalent to a Theoretical Plate",Protected=true); 688 689 VARIABLES 690 691 INITIALIZATION as InitializeStage (Brief = "Column Model Initialization"); 692 CONTROL as ControlSection (Brief="Column Model Control"); 693 694 out TCI as control_signal (Brief="Temperature Indicator", Protected = true, PosX=1, PosY=0.73); 695 out PCI as control_signal (Brief="Pressure Indicator", Protected = true, PosX=0, PosY=0.24); 696 697 in LiquidInlet as stream (Brief="Liquid Inlet in the section", PosX=0.70, PosY=0,Protected=true); 698 out VapourOutlet as vapour_stream (Brief="Vapour Outlet in the section", PosX=0.30, PosY=0,Protected=true); 699 700 in VapourInlet as stream (Brief="Vapour Inlet in the section", PosX=0.30, PosY=1,Protected=true); 701 out LiquidOutlet as liquid_stream (Brief="Liquid Outlet in the section", PosX=0.70, PosY=1,Protected=true); 702 703 LiquidConnector as stream (Brief="Liquid connection at the middle STAGES", PosX=0.75, PosY=1,Hidden=true); 704 VapourConnector as stream (Brief="Vapour connection at the middle STAGES", PosX=0.55, PosY=0,Hidden=true); 705 706 STAGES(NumberOfStages) as packedStage (Brief="Column Stages",Protected=true); 707 PressureDrop as pressure (Brief="Column Pressure Drop", Protected=true); 708 709 SET 710 711 STAGES.Number_Stages = NumberOfStages; 712 STAGES.HeightOfPacking = PackingHeight; 713 STAGES.HeatOnStage = HeatSupply; 714 STAGES.ColumnInternalDiameter = ColumnDiameter; 715 STAGES.PackingVoidFraction = VoidFraction; 716 STAGES.LiquidResistanceCoeff = ResistanceCoeff ; 717 STAGES.AreaPerPackingVolume = AreaPerPackingVol; 718 719 HETP = PackingHeight/NumberOfStages; 720 721 CONNECTIONS 722 723 STAGES([2:NumberOfStages]).OutletVapour to STAGES([1:NumberOfStages-1]).InletVapour; 724 STAGES([1:NumberOfStages-1]).OutletLiquid to STAGES([2:NumberOfStages]).InletLiquid; 725 LiquidConnector to STAGES(1).InletLiquid; 726 VapourConnector to STAGES(NumberOfStages).InletVapour; 727 728 EQUATIONS 729 730 LiquidConnector.F= LiquidInlet.F; 731 LiquidConnector.T = LiquidInlet.T; 732 LiquidConnector.P = LiquidInlet.P; 733 LiquidConnector.z = LiquidInlet.z; 734 LiquidConnector.v = LiquidInlet.v; 735 LiquidConnector.h = LiquidInlet.h; 736 737 VapourConnector.F= VapourInlet.F; 738 VapourConnector.T = VapourInlet.T; 739 VapourConnector.P = VapourInlet.P; 740 VapourConnector.z = VapourInlet.z; 741 VapourConnector.v = VapourInlet.v; 742 VapourConnector.h = VapourInlet.h; 743 744 LiquidOutlet.F= STAGES(NumberOfStages).OutletLiquid.F; 745 LiquidOutlet.T = STAGES(NumberOfStages).OutletLiquid.T; 746 LiquidOutlet.P = STAGES(NumberOfStages).OutletLiquid.P; 747 LiquidOutlet.z = STAGES(NumberOfStages).OutletLiquid.z; 748 749 VapourOutlet.F= STAGES(1).OutletVapour.F; 750 VapourOutlet.T = STAGES(1).OutletVapour.T; 751 VapourOutlet.P = STAGES(1).OutletVapour.P; 752 VapourOutlet.z = STAGES(1).OutletVapour.z; 753 754 "Tray Temperature Indicator" 755 #TCI*'K' = TRAYS(min([NumberOfTrays, CONTROL.Tindicator_TrayNumber])).OutletVapour.T; 756 TCI*'K' = STAGES(CONTROL.Tindicator_TrayNumber).OutletVapour.T; 757 758 "Tray Pressure Indicator" 759 #PCI*'atm' = TRAYS(min([NumberOfTrays, CONTROL.Pindicator_TrayNumber])).OutletVapour.P; 760 PCI*'atm' = STAGES(CONTROL.Pindicator_TrayNumber).OutletVapour.P; 761 762 "PressureDrop" 763 PressureDrop = STAGES(NumberOfStages).OutletLiquid.P - STAGES(1).OutletLiquid.P; 764 765 INITIAL 766 767 for i in 1:NumberOfStages do 768 769 "The initial temperature of the STAGES" 770 STAGES(i).OutletLiquid.T = INITIALIZATION.TopStageTemperature+(INITIALIZATION.BottomStageTemperature-INITIALIZATION.TopStageTemperature)*((i-1)/(NumberOfStages-1)); 771 772 "The Column Holdup of the STAGES" 773 STAGES(i).hl = INITIALIZATION.ColumnHoldup; 774 775 end 776 777 for i in 1:NComp-1 do 778 779 for j in 1:NumberOfStages do 780 781 "The initial composition of the TRAYS" 782 STAGES(j).OutletLiquid.z(i) = INITIALIZATION.TopStageComposition(i)/sum(INITIALIZATION.TopStageComposition) +(INITIALIZATION.BottomStageComposition(i)/sum(INITIALIZATION.BottomStageComposition)-INITIALIZATION.TopStageComposition(i)/sum(INITIALIZATION.TopStageComposition) )*((j-1)/(NumberOfStages-1)); 783 784 end 785 786 end 787 788 end 789 790 Model Packed_Section_Column as Packed_Section_ColumnBasic 791 792 ATTRIBUTES 793 Pallete = true; 794 Icon = "icon/PackedSectionColumn"; 795 Brief = "Model of a packed column section."; 796 Info = 797 "== Model of a packed column section containing == 798 * NStages theoretical stages. 799 800 == Specify == 801 * the feed stream of each tray (Inlet); 802 * the InletLiquid stream of the top tray; 803 * the InletVapour stream of the bottom tray; 804 * the total pressure drop (dP) of the section. 805 806 == Initial Conditions == 807 * the stages temperature (OutletLiquid.T); 808 * the stages liquid holdup; 809 * (NoComps - 1) OutletLiquid (OR OutletVapour) compositions for each tray. 810 "; 811 812 SET 813 NumberOfFeeds = 1; 814 815 VARIABLES 816 817 in FeedStage as stream (Brief="Feed stream", PosX=0, PosY=0.55); 818 819 EQUATIONS 820 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 821 # Equating Feed Tray Variables to Trays Variables 822 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 823 for i in 1:NumberOfStages do 824 825 if i equal FeedStageLocation(1) then 826 827 "FeedTrayTop Inlet Flow" 828 FeedStage.F= STAGES(i).Inlet.F; 829 830 "FeedTrayTop Inlet Temperature" 831 FeedStage.T = STAGES(i).Inlet.T; 832 833 "FeedTrayTop Inlet Pressure" 834 FeedStage.P = STAGES(i).Inlet.P; 835 836 "FeedTrayTop Inlet Composition" 837 FeedStage.z = STAGES(i).Inlet.z; 838 839 "FeedTrayTop Inlet Vapour Fraction" 840 FeedStage.v = STAGES(i).Inlet.v; 841 842 "FeedTrayTop Inlet Enthalpy" 843 FeedStage.h = STAGES(i).Inlet.h; 844 845 else 846 847 "Inlet Tray - Flow Sealed" 848 0*'mol/h'= STAGES(i).Inlet.F; 849 850 "Inlet Tray - Temperature" 851 300*'K' = STAGES(i).Inlet.T; 852 853 "Inlet Tray - Pressure" 854 1*'atm' = STAGES(i).Inlet.P; 855 856 "Inlet Tray - Composition" 857 0.1 = STAGES(i).Inlet.z; 858 859 "Inlet Tray - Vapour Fraction" 860 0 = STAGES(i).Inlet.v; 861 862 "Inlet Tray - Enthalpy" 863 0*'J/mol' = STAGES(i).Inlet.h; 864 865 end 866 867 end 868 869 end 870 871 Model Packed_Section_Column2 as Packed_Section_ColumnBasic 872 873 ATTRIBUTES 874 Pallete = true; 875 Icon = "icon/PackedSectionColumn"; 876 Brief = "Model of a packed column section."; 877 Info = 878 "== Model of a packed column section containing == 879 * NStages theoretical stages. 880 881 == Specify == 882 * the feed stream of each tray (Inlet); 883 * the InletLiquid stream of the top tray; 884 * the InletVapour stream of the bottom tray; 885 * the total pressure drop (dP) of the section. 886 887 == Initial Conditions == 888 * the stages temperature (OutletLiquid.T); 889 * the stages liquid holdup; 890 * (NoComps - 1) OutletLiquid (OR OutletVapour) compositions for each tray. 891 "; 892 893 SET 894 NumberOfFeeds = 2; 895 896 VARIABLES 897 898 in FeedStageOne as stream (Brief="Feed stream", PosX=0, PosY=0.45); 899 in FeedStageTwo as stream (Brief="Feed stream", PosX=0, PosY=0.65); 900 901 EQUATIONS 902 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 903 # Equating Feed Stage Variables to Stages Variables 904 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 905 906 for i in 1:NumberOfStages do 907 908 if i equal FeedStageLocation(1) then 909 910 "FeedTrayTop Inlet Flow" 911 FeedStageOne.F= STAGES(i).Inlet.F; 912 913 "FeedTrayTop Inlet Temperature" 914 FeedStageOne.T = STAGES(i).Inlet.T; 915 916 "FeedTrayTop Inlet Pressure" 917 FeedStageOne.P = STAGES(i).Inlet.P; 918 919 "FeedTrayTop Inlet Composition" 920 FeedStageOne.z = STAGES(i).Inlet.z; 921 922 "FeedTrayTop Inlet Vapour Fraction" 923 FeedStageOne.v = STAGES(i).Inlet.v; 924 925 "FeedTrayTop Inlet Enthalpy" 926 FeedStageOne.h = STAGES(i).Inlet.h; 927 928 else if i equal FeedStageLocation(2) then 929 930 "FeedTrayBottom Inlet Flow" 931 FeedStageTwo.F= STAGES(i).Inlet.F; 932 933 "FeedTrayBottom Inlet Temperature" 934 FeedStageTwo.T = STAGES(i).Inlet.T; 935 936 "FeedTrayBottom Inlet Pressure" 937 FeedStageTwo.P = STAGES(i).Inlet.P; 938 939 "FeedTrayBottom Inlet Composition" 940 FeedStageTwo.z = STAGES(i).Inlet.z; 941 942 "FeedTrayBottom Inlet Vapour Fraction" 943 FeedStageTwo.v = STAGES(i).Inlet.v; 944 945 "FeedTrayBottom Inlet Enthalpy" 946 FeedStageTwo.h = STAGES(i).Inlet.h; 947 948 else 949 950 "Inlet Tray - Flow Sealed" 951 0*'mol/h'= STAGES(i).Inlet.F; 952 953 "Inlet Tray - Temperature" 954 300*'K' = STAGES(i).Inlet.T; 955 956 "Inlet Tray - Pressure" 957 1*'atm' = STAGES(i).Inlet.P; 958 959 "Inlet Tray - Composition" 960 0.1 = STAGES(i).Inlet.z; 961 962 "Inlet Tray - Vapour Fraction" 963 0 = STAGES(i).Inlet.v; 964 965 "Inlet Tray - Enthalpy" 966 0*'J/mol' = STAGES(i).Inlet.h; 967 968 end 969 970 end 971 972 end 973 974 end 975 976 977 # Models to be revised 978 #* 649 979 Model ColumnBasic 650 980 … … 1689 2019 end 1690 2020 1691 1692 1693 Model Packed_Section_ColumnBasic1694 1695 ATTRIBUTES1696 Pallete = false;1697 Icon = "icon/PackedSectionColumn";1698 Brief = "Model of a packed column section.";1699 Info =1700 "== Model of a packed column section containing ==1701 * NStages theoretical stages.1702 1703 == Specify ==1704 * the feed stream of each tray (Inlet);1705 * the InletLiquid stream of the top tray;1706 * the InletVapour stream of the bottom tray;1707 * the total pressure drop (dP) of the section.1708 1709 == Initial Conditions ==1710 * the stages temperature (OutletLiquid.T);1711 * the stages liquid holdup;1712 * (NoComps - 1) OutletLiquid (OR OutletVapour) compositions for each tray.1713 ";1714 1715 PARAMETERS1716 1717 outer PP as Plugin (Brief = "External Physical Properties", Type="PP");1718 outer NComp as Integer (Brief="Number of components",Protected=true);1719 1720 1721 NumberOfFeeds as Integer (Brief="Number of Feed Stages",Default=3,Protected=true);1722 NumberOfStages as Integer (Brief="Number of Stages", Default=3);1723 FeedStageLocation(NumberOfFeeds) as Integer (Brief="Feed Stage Location",Default=2);1724 1725 PackingHeight as length (Brief="Height of packing");1726 HeatSupply as heat_rate (Brief="Rate of heat supply");1727 ColumnDiameter as length (Brief="Column diameter");1728 VoidFraction as Real (Brief="Void fraction of packing, (m^3 void space/m^3 packed bed)");1729 ResistanceCoeff as positive (Brief="Resistance coefficient on the liquid load", Default=1);1730 AreaPerPackingVol as Real (Brief="surface area per packing volume", Unit='m^2/m^3');1731 HETP as length (Brief="The Height Equivalent to a Theoretical Plate",Protected=true);1732 1733 VARIABLES1734 1735 INITIALIZATION as InitializeStage (Brief = "Column Model Initialization");1736 CONTROL as ControlSection (Brief="Column Model Control");1737 1738 out TCI as control_signal (Brief="Temperature Indicator", Protected = true, PosX=1, PosY=0.73);1739 out PCI as control_signal (Brief="Pressure Indicator", Protected = true, PosX=0, PosY=0.24);1740 1741 in LiquidInlet as stream (Brief="Liquid Inlet in the section", PosX=0.70, PosY=0,Protected=true);1742 out VapourOutlet as vapour_stream (Brief="Vapour Outlet in the section", PosX=0.30, PosY=0,Protected=true);1743 1744 in VapourInlet as stream (Brief="Vapour Inlet in the section", PosX=0.30, PosY=1,Protected=true);1745 out LiquidOutlet as liquid_stream (Brief="Liquid Outlet in the section", PosX=0.70, PosY=1,Protected=true);1746 1747 LiquidConnector as stream (Brief="Liquid connection at the middle STAGES", PosX=0.75, PosY=1,Hidden=true);1748 VapourConnector as stream (Brief="Vapour connection at the middle STAGES", PosX=0.55, PosY=0,Hidden=true);1749 1750 STAGES(NumberOfStages) as packedStage (Brief="Column Stages",Protected=true);1751 PressureDrop as pressure (Brief="Column Pressure Drop", Protected=true);1752 1753 SET1754 1755 STAGES.Number_Stages = NumberOfStages;1756 STAGES.HeightOfPacking = PackingHeight;1757 STAGES.HeatOnStage = HeatSupply;1758 STAGES.ColumnInternalDiameter = ColumnDiameter;1759 STAGES.PackingVoidFraction = VoidFraction;1760 STAGES.LiquidResistanceCoeff = ResistanceCoeff ;1761 STAGES.AreaPerPackingVolume = AreaPerPackingVol;1762 1763 HETP = PackingHeight/NumberOfStages;1764 1765 CONNECTIONS1766 1767 STAGES([2:NumberOfStages]).OutletVapour to STAGES([1:NumberOfStages-1]).InletVapour;1768 STAGES([1:NumberOfStages-1]).OutletLiquid to STAGES([2:NumberOfStages]).InletLiquid;1769 LiquidConnector to STAGES(1).InletLiquid;1770 VapourConnector to STAGES(NumberOfStages).InletVapour;1771 1772 EQUATIONS1773 1774 LiquidConnector.F= LiquidInlet.F;1775 LiquidConnector.T = LiquidInlet.T;1776 LiquidConnector.P = LiquidInlet.P;1777 LiquidConnector.z = LiquidInlet.z;1778 LiquidConnector.v = LiquidInlet.v;1779 LiquidConnector.h = LiquidInlet.h;1780 1781 VapourConnector.F= VapourInlet.F;1782 VapourConnector.T = VapourInlet.T;1783 VapourConnector.P = VapourInlet.P;1784 VapourConnector.z = VapourInlet.z;1785 VapourConnector.v = VapourInlet.v;1786 VapourConnector.h = VapourInlet.h;1787 1788 LiquidOutlet.F= STAGES(NumberOfStages).OutletLiquid.F;1789 LiquidOutlet.T = STAGES(NumberOfStages).OutletLiquid.T;1790 LiquidOutlet.P = STAGES(NumberOfStages).OutletLiquid.P;1791 LiquidOutlet.z = STAGES(NumberOfStages).OutletLiquid.z;1792 1793 VapourOutlet.F= STAGES(1).OutletVapour.F;1794 VapourOutlet.T = STAGES(1).OutletVapour.T;1795 VapourOutlet.P = STAGES(1).OutletVapour.P;1796 VapourOutlet.z = STAGES(1).OutletVapour.z;1797 1798 "Tray Temperature Indicator"1799 #TCI*'K' = TRAYS(min([NumberOfTrays, CONTROL.Tindicator_TrayNumber])).OutletVapour.T;1800 TCI*'K' = STAGES(CONTROL.Tindicator_TrayNumber).OutletVapour.T;1801 1802 "Tray Pressure Indicator"1803 #PCI*'atm' = TRAYS(min([NumberOfTrays, CONTROL.Pindicator_TrayNumber])).OutletVapour.P;1804 PCI*'atm' = STAGES(CONTROL.Pindicator_TrayNumber).OutletVapour.P;1805 1806 "PressureDrop"1807 PressureDrop = STAGES(NumberOfStages).OutletLiquid.P - STAGES(1).OutletLiquid.P;1808 1809 INITIAL1810 1811 for i in 1:NumberOfStages do1812 1813 "The initial temperature of the STAGES"1814 STAGES(i).OutletLiquid.T = INITIALIZATION.TopStageTemperature+(INITIALIZATION.BottomStageTemperature-INITIALIZATION.TopStageTemperature)*((i-1)/(NumberOfStages-1));1815 1816 "The Column Holdup of the STAGES"1817 STAGES(i).hl = INITIALIZATION.ColumnHoldup;1818 1819 end1820 1821 for i in 1:NComp-1 do1822 1823 for j in 1:NumberOfStages do1824 1825 "The initial composition of the TRAYS"1826 STAGES(j).OutletLiquid.z(i) = INITIALIZATION.TopStageComposition(i)/sum(INITIALIZATION.TopStageComposition) +(INITIALIZATION.BottomStageComposition(i)/sum(INITIALIZATION.BottomStageComposition)-INITIALIZATION.TopStageComposition(i)/sum(INITIALIZATION.TopStageComposition) )*((j-1)/(NumberOfStages-1));1827 1828 end1829 1830 end1831 1832 end1833 1834 Model Packed_Section_Column as Packed_Section_ColumnBasic1835 1836 ATTRIBUTES1837 Pallete = true;1838 Icon = "icon/PackedSectionColumn";1839 Brief = "Model of a packed column section.";1840 Info =1841 "== Model of a packed column section containing ==1842 * NStages theoretical stages.1843 1844 == Specify ==1845 * the feed stream of each tray (Inlet);1846 * the InletLiquid stream of the top tray;1847 * the InletVapour stream of the bottom tray;1848 * the total pressure drop (dP) of the section.1849 1850 == Initial Conditions ==1851 * the stages temperature (OutletLiquid.T);1852 * the stages liquid holdup;1853 * (NoComps - 1) OutletLiquid (OR OutletVapour) compositions for each tray.1854 ";1855 1856 SET1857 NumberOfFeeds = 1;1858 1859 VARIABLES1860 1861 in FeedStage as stream (Brief="Feed stream", PosX=0, PosY=0.55);1862 1863 EQUATIONS1864 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++1865 # Equating Feed Tray Variables to Trays Variables1866 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++1867 for i in 1:NumberOfStages do1868 1869 if i equal FeedStageLocation(1) then1870 1871 "FeedTrayTop Inlet Flow"1872 FeedStage.F= STAGES(i).Inlet.F;1873 1874 "FeedTrayTop Inlet Temperature"1875 FeedStage.T = STAGES(i).Inlet.T;1876 1877 "FeedTrayTop Inlet Pressure"1878 FeedStage.P = STAGES(i).Inlet.P;1879 1880 "FeedTrayTop Inlet Composition"1881 FeedStage.z = STAGES(i).Inlet.z;1882 1883 "FeedTrayTop Inlet Vapour Fraction"1884 FeedStage.v = STAGES(i).Inlet.v;1885 1886 "FeedTrayTop Inlet Enthalpy"1887 FeedStage.h = STAGES(i).Inlet.h;1888 1889 else1890 1891 "Inlet Tray - Flow Sealed"1892 0*'mol/h'= STAGES(i).Inlet.F;1893 1894 "Inlet Tray - Temperature"1895 300*'K' = STAGES(i).Inlet.T;1896 1897 "Inlet Tray - Pressure"1898 1*'atm' = STAGES(i).Inlet.P;1899 1900 "Inlet Tray - Composition"1901 0.1 = STAGES(i).Inlet.z;1902 1903 "Inlet Tray - Vapour Fraction"1904 0 = STAGES(i).Inlet.v;1905 1906 "Inlet Tray - Enthalpy"1907 0*'J/mol' = STAGES(i).Inlet.h;1908 1909 end1910 1911 end1912 1913 end1914 1915 Model Packed_Section_Column2 as Packed_Section_ColumnBasic1916 1917 ATTRIBUTES1918 Pallete = true;1919 Icon = "icon/PackedSectionColumn";1920 Brief = "Model of a packed column section.";1921 Info =1922 "== Model of a packed column section containing ==1923 * NStages theoretical stages.1924 1925 == Specify ==1926 * the feed stream of each tray (Inlet);1927 * the InletLiquid stream of the top tray;1928 * the InletVapour stream of the bottom tray;1929 * the total pressure drop (dP) of the section.1930 1931 == Initial Conditions ==1932 * the stages temperature (OutletLiquid.T);1933 * the stages liquid holdup;1934 * (NoComps - 1) OutletLiquid (OR OutletVapour) compositions for each tray.1935 ";1936 1937 SET1938 NumberOfFeeds = 2;1939 1940 VARIABLES1941 1942 in FeedStageOne as stream (Brief="Feed stream", PosX=0, PosY=0.45);1943 in FeedStageTwo as stream (Brief="Feed stream", PosX=0, PosY=0.65);1944 1945 EQUATIONS1946 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++1947 # Equating Feed Stage Variables to Stages Variables1948 #++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++1949 1950 for i in 1:NumberOfStages do1951 1952 if i equal FeedStageLocation(1) then1953 1954 "FeedTrayTop Inlet Flow"1955 FeedStageOne.F= STAGES(i).Inlet.F;1956 1957 "FeedTrayTop Inlet Temperature"1958 FeedStageOne.T = STAGES(i).Inlet.T;1959 1960 "FeedTrayTop Inlet Pressure"1961 FeedStageOne.P = STAGES(i).Inlet.P;1962 1963 "FeedTrayTop Inlet Composition"1964 FeedStageOne.z = STAGES(i).Inlet.z;1965 1966 "FeedTrayTop Inlet Vapour Fraction"1967 FeedStageOne.v = STAGES(i).Inlet.v;1968 1969 "FeedTrayTop Inlet Enthalpy"1970 FeedStageOne.h = STAGES(i).Inlet.h;1971 1972 else if i equal FeedStageLocation(2) then1973 1974 "FeedTrayBottom Inlet Flow"1975 FeedStageTwo.F= STAGES(i).Inlet.F;1976 1977 "FeedTrayBottom Inlet Temperature"1978 FeedStageTwo.T = STAGES(i).Inlet.T;1979 1980 "FeedTrayBottom Inlet Pressure"1981 FeedStageTwo.P = STAGES(i).Inlet.P;1982 1983 "FeedTrayBottom Inlet Composition"1984 FeedStageTwo.z = STAGES(i).Inlet.z;1985 1986 "FeedTrayBottom Inlet Vapour Fraction"1987 FeedStageTwo.v = STAGES(i).Inlet.v;1988 1989 "FeedTrayBottom Inlet Enthalpy"1990 FeedStageTwo.h = STAGES(i).Inlet.h;1991 1992 else1993 1994 "Inlet Tray - Flow Sealed"1995 0*'mol/h'= STAGES(i).Inlet.F;1996 1997 "Inlet Tray - Temperature"1998 300*'K' = STAGES(i).Inlet.T;1999 2000 "Inlet Tray - Pressure"2001 1*'atm' = STAGES(i).Inlet.P;2002 2003 "Inlet Tray - Composition"2004 0.1 = STAGES(i).Inlet.z;2005 2006 "Inlet Tray - Vapour Fraction"2007 0 = STAGES(i).Inlet.v;2008 2009 "Inlet Tray - Enthalpy"2010 0*'J/mol' = STAGES(i).Inlet.h;2011 2012 end2013 2014 end2015 2016 end2017 2018 end2019 2020 2021 Model PackedDistillation_kettle_cond as Packed_Section_ColumnBasic 2021 2022 ATTRIBUTES … … 2123 2124 end 2124 2125 2125 #*2126 2126 Model Rectifier_subcooling as Section_ColumnBasicX 2127 2127
Note: See TracChangeset
for help on using the changeset viewer.
