User defined output unit set

For all the flash computations, the user can optionally specify the unit of each output value in the Stream output in the params.unitSetInfo section. The table below describes the supported output units.

params.unitSetInfo	definition	default unit	units available
liq1_phs_comp	liquid 1 phase composition	mol	see composition units below
solid_phs_comp	solid phase composition output	mol	see composition units below
vapor_phs_comp	vapor phase composition output	mol	see composition units below
liq2_phs_comp	liquid 2 phase composition output	mol	see composition units below
combined_phs_comp	total composition output	mol	see composition units below
density	density of a phase/total stream	g/L	g/ml, kg/m3, g/L, kg/L, lb/ft3, lb/gal
mass	mass of a phase/total stream	g	g, kg, lb, mg, (g/100), metric ton
vol	volume of a phase/total stream	L	L, ml, cm3, m3, E3m3, E6m3, ft3, Mft3, MMft3, gal, MMgal, bbl
moles	total moles in a phase/stream	mol	mol, kgmol, lbmol, mmol, μmol, (mol/100)
pt	pressure of stream	atm	atm, bar, barg, mbar, Pa, kPa, MPa, mmHg, Torr, inHg, psia, psig, inH2O, kg/cm2
t	temperature of stream	°C	K, degree_Fahrenheit, °C, °F, degree_Celsius, R
enthalpy	enthalpy of a phase/stream	cal	cal, E3cal, E6cal, J, kJ, MJ, Btu, MMBtu
visabs	Absolute viscosity	cP	cP, Poise, Pa-s
i	Ionic strength, x-based	mol/mol	mol/mol
im	Ionic strength, m-based	mol/kg	mol/kg
econd	Specific electric conductivity	µmho/cm	mho/m, mho/cm, µmho/m, µmho/cm
econdm	Molar electric conductivity	m2/ohm-mol	m2/ohm-mol, cm2/ohm-mol
fug	Fugacity	atm	atm, bar, barg, mbar, Pa, kPa, MPa, mmHg, Torr, inHg, psia, psig, inH2O, kg/cm2
mob	Mobilities	cm2/s-volt	cm2/s-volt, m2/s-volt
dif	Self diffusivity	m2/s	m2/s
alkalinity	Alkalinity	mg HCO3/L	eq/L, meq/L, mg HCO3/L, mg CO3/L, mol HCO3/L, mol CO3/L, mg CaCO3/L, mol CaCO3/L
tds	Total dissolved solids	mg/L	mg/L
cp	Heat capacity	cal/g K	J/kg K, J/g K, cal/g K, Btu/lb R
entr	Entropy	cal/K	J/K, cal/K, Btu/R
thermalcond	Thermal conductivity	cal/hr m °C	Btu/hr ft °F, cal/hr m °C, cal/s m °C, J/s m K
surface_tension	Surface tension	N/m	N/m, dyne/cm
mol_entr	Molar entropy	cal/mol K	J/mol K, cal/mol K, Btu/mol R
interfacial_tension	Interfacial tension	N/m	N/m, dyne/cm
kinetics_k	K value of kinetic reaction	mol/hr m3	mol/hr m3
kinetics_rate	Kinetic reaction rate	mol/hr hr	mol/hr hr
kinetics_extent	Kinetic reaction extent	mol/hr	mol/hr
hardness	Hardness	mg/L of Mg+2 and Ca+2	mg/L of Mg+2 and Ca+2
tic	Total inorganic carbon	mol C/L	mg C/L, g C/L, mol C/L
energy	Gibbs free energy	cal	cal, E3cal, E6cal, J, kJ, MJ, Btu, MMBtu
mol_energy	Molar Gibbs free energy	cal/mol	cal/mol, E3cal/mol, E6cal/mol, J/mol, kJ/mol, MJ/mol, Btu/mol, MMBtu/mol
part_pressure	Partial pressure	atm	atm, bar, barg, mbar, Pa, kPa, MPa, mmHg, Torr, inHg, psia, psig, inH2O, kg/cm2
molefrac	Mole fraction	mol/mol	mol/mol, mole %, ppm (mole)
induction_time	scaling induction time	hr	s, min, hr, day, yr

All unit entries do not have to be specified. The ones that are not will be overridden by the default.

Composition units

unit types	units
moles	mol, kgmol, lbmol, mmol, µmol, (mol/100)
mole fraction	mol/mol, mole %, ppm (mole)
mass	g, kg, lb, mg, (g/100), metric ton
mass fraction	g/g, mass %, ppm (mass)

composition units can be specified as any units above

JSON input (example)

Below is an input sample containing the params.unitSetInfo optional object using isothermal flash function input as an example.

{
    "params": {
        ...<snip>...
        "unitSetInfo": {
            "liq1_phs_comp": "mol/mol",
            "solid_phs_comp": "mol/mol",
            "vapor_phs_comp": "mol/mol",
            "liq2_phs_comp": "mol/mol",
            "combined_phs_comp": "mol/mol",
            "density": "kg/m3",
            "mass": "g",
            "vol": "L",
            "moles": "mol",
            "pt": "atm",
            "t": "°C",
            "enthalpy": "J",
            "visabs": "cP",
            "i": "mol/mol",
            "im" "mol/kg",
            "econd": "µmho/cm",
            "econdm": "m2/ohm-mol",
            "fug": "atm",
            "mob": "m2/s-volt",
            "dif": "m2/s",
            "alkalinity": "mg HCO3/L",
            "tds": "mg/L",
            "current_den": "A/sq-m",
            "molefrac": "mole %",
            "cp": "cal/g K",
            "entr": "cal/K hr",
            "thermalcond": "cal/hr m °C",
            "surface_tension": "N/m",
            "part_pressure": "atm",
            "mol_entr": "cal/mol K",
            "interfacial_tension": "N/m",
            "kinetics_k": "mol/hr m3",
            "kinetics_rate": "mol/hr hr",
            "kinetics_extent": "mol",
            "hardness": "mg/L of Mg+2 and Ca+2",
            "tic": "mol C/L"
        }
}

Explanation of each property and available units will be documented later.