This is the completed case for part 6 of the Alph Tutorial.
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{
"SelectedFluidIndex" : 7,
"PropPkg" : "APRNGL",
"Tools" : [
{
"Type" : "Hydrate",
"HydrateVariable" : "P",
"name" : "hydrate",
"DiagramX" : 93,
"DiagramY" : 3,
"Feed" : "feed"
},
{
"Source" : "feed.v",
"QualityLineSpec" : "1. 0.75 0.5 .95",
"name" : "envelope",
"DiagramX" : 185,
"Type" : "Phase Envelope",
"DiagramY" : 11,
"StartPressure" : "500 kPa"
},
{
"minInnerStep" : 0.0001,
"Pressures" : [
{
"Spec" : "700 kPa",
"Stage" : 0
},
{
"Spec" : "750 kPa",
"Stage" : -1
}
],
"ovhdFormula" : "140 kgmole/h",
"DiagramX" : 211.6708,
"Feeds" : [
{
"Stage" : 4,
"Fluid" : "feed.l"
},
{
"Stage" : 7,
"Fluid" : "lts.l"
}
],
"maxOuterError" : 0.0001,
"viewPage" : 2,
"maxOuterLoops" : 20,
"nStages" : 15,
"refluxRatio" : "1.0",
"attemptRestart" : false,
"dampingFactor" : 1,
"maxInnerLoops" : 50,
"name" : "stab",
"Description" : "liquid stabilizer",
"Type" : "Tower",
"Draws" : [],
"Energies" : [
{
"Spec" : "(@vpcheck.t -{fromunit \"f\" \"t\" 100}) / 500",
"Stage" : 0
},
{
"Stage" : -1
}
],
"Temperatures" : [
{
"Spec" : "20 C",
"Stage" : 0
},
{
"Spec" : "150 C",
"Stage" : -1
}
],
"DiagramY" : 204.5386,
"maxInnerError" : 0.0001
},
{
"name" : "c3comp",
"Description" : "Propane Compressor",
"Feed" : "c3comp",
"DiagramX" : 295.5243,
"outP" : "@c3jt + $dp",
"Type" : "Compressor/Expander",
"efficiency" : "75",
"DiagramY" : 347.4706
}
],
"diagramX" : 0,
"SelectedToolIndex" : 3,
"Program" : "Alph",
"NextFluidNumber" : 13,
"Fluids" : [
{
"CompFormula" : "[ 70,20,10,9,8,7,6,5 ]",
"Retrograde" : false,
"FlowFormula" : "10 mmscfd",
"SecondPropFormula" : "4000 kPa",
"name" : "feed",
"DiagramX" : 12,
"TwoLiquids" : false,
"SumCompForFlow" : false,
"FirstPropType" : "T",
"SecondPropType" : "P",
"DiagramY" : 52,
"FirstPropFormula" : "10 C"
},
{
"CompFormula" : "@feed.v",
"Retrograde" : false,
"FlowFormula" : "@feed.v",
"SecondPropFormula" : "@feed - 2 * $dp",
"name" : "lts",
"DiagramX" : 126,
"TwoLiquids" : false,
"SumCompForFlow" : false,
"FirstPropType" : "T",
"SecondPropType" : "P",
"DiagramY" : 50,
"FirstPropFormula" : "-10 C"
},
{
"CompFormula" : "@lts.v",
"Retrograde" : false,
"FlowFormula" : "@lts.v",
"SecondPropFormula" : "1",
"name" : "dewpt",
"DiagramX" : 227,
"TwoLiquids" : false,
"SumCompForFlow" : false,
"FirstPropType" : "P",
"SecondPropType" : "Vf",
"DiagramY" : 40,
"FirstPropFormula" : "800 psig"
},
{
"CompFormula" : "@lts.v",
"Retrograde" : false,
"FlowFormula" : "@lts.v",
"SecondPropFormula" : "@lts - $dp",
"name" : "salesgas",
"DiagramX" : 211,
"TwoLiquids" : false,
"SumCompForFlow" : false,
"FirstPropType" : "T",
"SecondPropType" : "P",
"DiagramY" : 84,
"FirstPropFormula" : "@feed - $dt"
},
{
"FlowFormula" : "@feed.v",
"SumCompForFlow" : false,
"DiagramX" : 96.12356,
"Retrograde" : false,
"FirstPropType" : "P",
"CompFormula" : "@feed.v",
"SecondPropType" : "H",
"FirstPropFormula" : "@feed - $dp",
"TwoLiquids" : false,
"SecondPropFormula" : "(@feed.v.Q - $ggduty) / @feed.v.F",
"name" : "chillfeed",
"Description" : "Chiller Feed",
"DiagramY" : 314.2448
},
{
"FlowFormula" : "#stab.0.v.f",
"SumCompForFlow" : false,
"DiagramX" : 288.5555,
"Retrograde" : false,
"FirstPropType" : "P",
"CompFormula" : "#stab.0.v.x",
"SecondPropType" : "Vf",
"FirstPropFormula" : "#stab.0.p",
"TwoLiquids" : true,
"SecondPropFormula" : "1",
"name" : "stabovhd",
"Description" : "Stabilizer Overheads",
"DiagramY" : 189.5869
},
{
"FlowFormula" : "#stab._1.l.f",
"SumCompForFlow" : false,
"DiagramX" : 286.1607,
"Retrograde" : false,
"FirstPropType" : "P",
"CompFormula" : "#stab._1.l.x",
"SecondPropType" : "Vf",
"FirstPropFormula" : "#stab._1.p",
"TwoLiquids" : false,
"SecondPropFormula" : "0",
"name" : "stabbtms",
"Description" : "Stabilizer Bottoms",
"DiagramY" : 230.2954
},
{
"FlowFormula" : "@stabbtms",
"SumCompForFlow" : false,
"DiagramX" : 219.4816,
"Retrograde" : false,
"FirstPropType" : "P",
"CompFormula" : "@stabbtms",
"SecondPropType" : "Vf",
"FirstPropFormula" : "1 atm",
"TwoLiquids" : false,
"SecondPropFormula" : "0",
"name" : "vpcheck",
"Description" : "Check vapour pressure of stabilizer bottoms",
"DiagramY" : 267.5058
},
{
"FlowFormula" : "@c3jt",
"SumCompForFlow" : false,
"DiagramX" : 206.6817,
"Retrograde" : false,
"FirstPropType" : "T",
"CompFormula" : "[0,0,1,0,0,0,0,0]",
"SecondPropType" : "Vf",
"FirstPropFormula" : "@lts - $dt",
"TwoLiquids" : false,
"SecondPropFormula" : "1",
"name" : "c3comp",
"Description" : "Propane to Compressor",
"DiagramY" : 359.4185
},
{
"FlowFormula" : "(@chillfeed.Q - @lts.Q) / (@c3comp.H - @c3jt.H)",
"SumCompForFlow" : false,
"DiagramX" : 207.1787,
"Retrograde" : false,
"FirstPropType" : "T",
"CompFormula" : "@c3comp",
"SecondPropType" : "Vf",
"FirstPropFormula" : "45 C",
"TwoLiquids" : false,
"SecondPropFormula" : "0",
"name" : "c3jt",
"Description" : "Propane to JT Valve",
"DiagramY" : 416.8507
},
{
"FlowFormula" : "#c3comp",
"SumCompForFlow" : false,
"DiagramX" : 304.53,
"Retrograde" : false,
"FirstPropType" : "P",
"CompFormula" : "#c3comp",
"SecondPropType" : "H",
"FirstPropFormula" : "#c3comp",
"TwoLiquids" : false,
"SecondPropFormula" : "#c3comp",
"name" : "c3cond",
"Description" : "Propane to condenser",
"DiagramY" : 403.6384
}
],
"Hypotheticals" : [],
"diagramY" : 7,
"CompoundNames" : [
"METHANE",
"ETHANE",
"PROPANE",
"n-BUTANE",
"n-PENTANE",
"n-HEXANE",
"n-HEPTANE",
"n-OCTANE"
],
"SelectedVariableIndex" : 2,
"Variables" : [
{
"PropertyType" : "DeltaP",
"name" : "dp",
"DiagramX" : 10,
"DiagramY" : 92,
"PropertyFormula" : "50 Kpa"
},
{
"PropertyType" : "DeltaT",
"name" : "dt",
"DiagramX" : 12,
"DiagramY" : 137,
"PropertyFormula" : "5 C"
},
{
"PropertyType" : "Q",
"name" : "ggduty",
"DiagramX" : 209,
"DiagramY" : 123,
"PropertyFormula" : "@salesgas - @lts.v"
}
],
"CaseName" : "tutorial6",
"CurrentUnitSet" : 1,
"NextVariableNumber" : 8,
"Version" : 1.101,
"diagramScale" : 0.7882897,
"DisplayedProperties" : {
"-4" : "y",
"8" : "y",
"-2" : "y",
"-1" : "y",
"10001" : "y",
"-6" : "y",
"9" : "y"
}
}