Material Flow Section - PropGroup2
|Material Flow (Qo)||Qxxxx Tab Include Properties||Species Flow||Optional Tabs|
|Basic Information|| Energy |
| Density Correction |
| Acidity |
| HeatsOfCombustion |
| Solution Impurity |
|Water Quality||Sp Tab |
Related Links: Common Content Section
This section is used to display the included properties: Density Correction, Solubility and Saturation.
|Tag (Long/Short)||Input / Calc||Description/Calculated Variables / Options|
|H2O(l).State||Data||This will be OK if all of the species with density correction functions in the stream conditions are within their mass fraction limits. Any species that has exceeded it's mass fraction limit will be shown in this field. |
For example, if the user has a density correction function for NiSO4(aq) that is valid up to a mass fraction of 10% NiSO4 and the stream contains 15% NiSO4(aq), this field will contain: Limit:NiSO4(aq).
|H2O(l).Rho||Calc||The density of pure water at the temperature and pressure of the stream.|
|H2O(l).CorrFactor||Calc||The calculated density correction factor using all the correction factors of aqueous species in the stream for which density correction factors have been defined. Please see Density Correction Function.|
|H2O(l).AppRho||Calc||The calculated density of the liquor with only water and the components that have density correction functions.
Note: This value may be lower or higher than the actual liquid density if there are other liquid components in the stream that do not have density correction functions.
|If the Additional Density Correction option is selected in the Plant Model - Species tab page or from the Include Properties dropdown list on the first page of the material Flow section, then the following fields will also be shown:|
|H2O(l).AppRho25||Calc||The calculated density of the liquor with only water and the components that have density correction functions, at 25°C.|
|H2O(l).AppQm||Calc||The calculated mass flow of the liquor with only water and the components that have density correction functions.|
|H2O(l).AppQv||Calc||The calculated volume flow of the liquor with only water and the components that have density correction functions.|
|H2O(l).Fct.X(y)||Calc||The calculated density correction factor for species X(y).|
In this section only the fields that are relevant for the generic form of solubility, i.e. solubility equations entered in the Species Database, will be shown. For fields relating to Potash Solubility, please see Potash Solubility in Units.
|SolubleSpecies1.Saturated / Sat||Calc||This will be the saturation mass fraction of the soluble species. The tag is based on the actual species, for example NaCl.Sat. When .Act equals .Sat the mixture is saturated.|
|SolubleSpecies1.Actual / Act||Calc||This will be the actual mass fraction of the soluble species. The tag is based on the actual species, for example NaCl.Act.|
These properties are related to the saturation temperature and pressure of solution. These fields are only visible if the Additional Properties option for Saturation values is selected in the Plant Model - Views tab page or from the Include Properties dropdown list on the first page of the material Flow section.
|Component||List||Any component that has the correct Vp Equations defined in the species database maybe selected here. See VLE sub section for more information.|
|VapourFrac / Vf||Calc||Only available in Build 137 or later. Displays the vapour mass fraction.|
|TotalP||Calc||Displays the total pressure.|
|PartialP||Calc||Displays the partial pressure based on the component selected.|
|SatP@T||Calc||Saturated pressure at the mixture temperature.|
|SatT@PP||Calc||Saturated temperature at the mixture's partial pressure. Will be NAN (displayed as *) when no partial pressure.|
|SatT@P||Calc||Saturated temperature at the mixture pressure.|
|WaterSatT@P||Calc||Displays the Saturation Temperature at pressure based on pure water. This is used to calculate the Boiling point elevation. (Please see Water and Steam Properties for further information on this calculation)|
Note: User can change the BPE value limits in the Plant Model - species tab.
|Temperature / T||Calc||Temperature of the stream.|
|SuperHeat@PP||Calc||Super Heat at the mixture's partial pressure (T-SatT@PP). Will be NAN (displayed as *) when no partial pressure.|
|SuperHeat@P||Calc||Super Heat at the mixture's pressure (T-SatT@P).|
|Subcooling@P||Calc||Only available in Build 137 or later. The amount of Subcooling at the mixture's pressure (SatT@P-T).|
|LatHtVap||Calc||The Latent heat of vaporisation of the listed component at the temperature and partial pressure of the vaporizing species at the local conditions. The latent heat is the difference in enthalpy between the vapour phase and the liquid phase of the species. This is calculated as Enthalpy(VapourPhase at local Temperature and Partial Pressure) - Enthalpy(Liquid Phase at T and Total Pressure). This is the enthalpy difference used in energy calculations. NB unless the partial pressure of the vaporizing species is equal to the saturation pressure, the latent heat may not have exactly the same value as for saturation conditions since the vapor phase enthalpy depends on its partial pressure.|
|LatHtVap@SatP||Calc||The Latent heat of vaporisation of the listed component at the temperature and saturation pressure of the vaporizing species corresponding to the local temperature. The latent heat is the difference in enthalpy between the vapour phase and the liquid phase of the species. This is calculated as Enthalpy(VapourPhase at Temperature, T and saturation pressure for that T, PSat(T)) - Enthalpy(Liquid Phase at T and Total Pressure). This is the latent heat that would be found in saturation tables for a given temperature.|
|RelHumidity||Calc||The relative humidity of the stream. This is only useful if the stream contains gases, such as O2, N2, Air, etc.|
Relative Humidity = Partial Pressure of the Saturation Component (usually H2O) / Saturation Pressure of the Saturation Component at Stream Temperature * 100