Template:TCEReverseOsmosis Tab Page
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Unit Type: {{{TCE}}}ReverseOsmosis - The first tab page in the access window will have this name.
| Tag (Long/Short) | Input/ Calc | Description |
|---|---|---|
| Tag | Display | This name tag may be modified with the change tag option. |
| Condition | Display | OK if no errors/warnings, otherwise lists errors/warnings. |
| ConditionCount | Display | The current number of errors/warnings. If condition is OK, returns 0. |
| GeneralDescription / GenDesc | Display | This is an automatically generated description for the unit. If the user has entered text in the 'EqpDesc' field on the Info tab (see below), this will be displayed here. If this field is blank, then SysCAD will display the UnitType or SubClass. |
| Requirements | ||
| On | Tickbox | This variable in used to turn the unit ON or OFF. If the unit is OFF, all feed will exit via the Brine outlet. |
| Model | Simple | User only needs to specify Yield and Overall efficiency. No setting of pressures. No sub-models can be used. |
| General | User can choose from several efficiency methods and specify the outlet pressures. Sub-models can be used. | |
| MaxYield | User specified the limit for maximum permissible permeate recovery, as well as the efficiency required and outlet pressure. Several efficiency methods are available. Sub-models can be used. Available from Build 139.31388. Includes the effect of concentration polarization if ConcPolarizationFactor > 1.0. | |
| MinYield | Input | Only visible when Model set to MaxYield. Required minimum fraction of pure water in the feed which is recovered to the product stream. |
| MaxYield | Input | Only visible when Model set to MaxYield. Required maximum fraction of pure water in the feed which is recovered to the product stream. |
| SolidsTolInBrine / SolidsTol | Input | Only visible if Model selected is MaxYield . The maximum solids fraction in the brine stream. Available from Build 139.31388. If set to zero, target is achieved when the least soluble solid is at 99% of its saturation index. |
| CPF.Reqd | Input | Available from Build 139.31388. Concentration Polarisation Factor: The ratio of the salt aqueous mass concentration at the membrane surface to the bulk solution (due to mass transfer). For calculating the concentration, the solution volume is calculated using the selected SysCAD species model (it is NOT calculated by {{{TCE}}}). |
| YieldReqd | Input/Calc | User can specify this value when Model set to Simple or General. Required fraction of pure water in the feed which is recovered to the product stream. |
| HeatBalOptions / HB.Options | FixedT | User can specify the final product temperature. |
| FeedT | The final product temperature will equal the feed temperature. | |
| FixedHeat | No heat will be added or removed from the unit. | |
| OperatingT | Input | Only visible if HeatBalOptions selected is FixedT. The required temperature of the product stream. |
| CalcProductsUsing{{{TCE}}} / CalcProductsUsingTCE | Tickbox | This variable in used to turn the unit ON or OFF. If the unit is OFF, all feed will exit via the Brine outlet. |
| EffMethod | Only visible if Model selected is General or MaxYield | |
| Overall | User can specify a single efficiency of removal for all non-water liquid species. | |
| Individual Phase | User can specify an efficiency of removal for each individual liquid phase. | |
| Impurity Frac | User can specify the fraction of impurities in the product stream. | |
| Ionic Permeability | User can specify permeability of ions in the feed through the membrane. The ions are defined as the total ions after a complete breakdown of all species in solution, i.e. total sulphate will include that from H2SO4, MgSO4, etc. H+, OH-, and H3O+ ions cannot be specified | |
| EfficiencyReqd | Input | Only available if "Model is set to Simple", or "Model to General or Max Permeate Recovery and EffMethod is set to Overall". Required fraction of liquid species other than water that are recovered to the brine stream. |
| EfficiencyReqd.x | Input | Only available if EffMethod is set to Individual Phase. Required fraction of species in individual phase x (other than water) that are recovered to the brine stream. |
| ImpurityFracReqd / ImpFracReqd | Input | Only available if EffMethod is set to Impurity Frac. Required fraction of liquid species other than water in the product stream. |
| Pressure Requirements (Only visible if Model selected is General or MaxYield ) | ||
| Prod.PressureReqd / P_Reqd | Input | Required pressure of the product stream. |
| Brine.PressDropReqd / PDropReqd | Input | Required pressure drop from the feed pressure to the brine stream. |
| OperatingP - NOTE: this pressure is applied to the (combined) feed, before sub-models (if any). | ||
| Method | AutoDetect | If there are any liquids AND no vapours present in the feed, outlet streams will take the highest pressure of the feeds. Else (e.g. some vapours present) outlet streams will take the lowest pressure of the feeds. |
| LowestFeed | Outlet streams will take the lowest pressure of the feeds. | |
| HighestFeed | Outlet streams will take the highest pressure of the feeds. | |
| Atmospheric | Outlet streams will be at Atmospheric Pressure. The atmospheric pressure is calculated by SysCAD based on the user defined elevation (default elevation is at sea level = 101.325 kPa). The elevation can be changed on the Environment tab page of the Plant Model. | |
| RequiredP | Outlet streams will be at the user specified pressure. | |
| IgnoreLowMassFlow / IgnoreLowQm | Tick Box | This option is only visible if the AutoDetect, LowestFeed or HighestFeed methods are chosen. When calculating the outlet pressure and temperature of the tank, SysCAD will ignore the low flow feed streams should this option be selected. The low flow limit is set in the field below. |
| LowMassFlowFrac / LowQmFrac | Input | This field is only visible if the IgnoreLowQm option is selected. This is the amount any stream contributes to the total flow. For example, if the total feed to the tank is 10 kg/s, and this field is set to 1%. Then any feed streams with less than 0.1 kg/s will be ignored in the pressure calculations. |
| PressureReqd / P_Reqd | Input | This field is only visible if the RequiredP method is chosen. This is user specified pressure. |
| Result | Calc | The actual pressure used for the sum of the feeds which will also be the outlet pressure (unless further model options change the pressure). |
| EB... (Evaluation Block) (Only visible if Model selected is General or MaxYield ) | ||
| EvalSequence | Calc | The sequence in which the sub models (which are part of the evaluation blocks) will be calculated. The sequence is determined by the priority selection for the individual sub-models. Note: If the user chooses On-AutoSequence then SysCAD will determine the sequence of the sub-models. The auto evaluation sequence followed will be the order the sub models are listed below. |
| Makeups | Input | The number of Makeup Blocks required. Extra dropdown options Makeup1, Makeup2, etc. will be added to allow these to be switched on and off and prioritised in relation to the other sub-models. |
| MakeupX | List | This can be used to switch the Makeup Block (MU) on or off and prioritise it in relation to the other sub-models. If this is 'On' then the associated page, MUX becomes visible and may be configured. Note: This field is only visible if the entry for 'Makeups' is greater than 0. If there is one makeup then X=1. If there are two makeups, then X=1 and X=2, etc. |
| Residence Time | ||
| ResTime... | ||
| Calc | Tickbox | Allows the user to specify the volume of the unit, from which a residence time can be calculated. |
| Volume | Input | Only visible if the Calc option has been enabled. The operating volume of the unit. This will be used to calculate the apparent residence time in the unit. This is based on the volumetric flow of all outlets from the unit. |
| MassFlow / Qm | Calc | Only visible if the Calc option has been enabled. The mass flow of material from the unit. |
| Temperature / T | Calc | Only visible if the Calc option has been enabled. The temperature of the material leaving the unit. |
| Slurry | Calc | Only visible if the Calc option has been enabled. The residence time of the slurry in the unit. |
| Total | Calc | Only visible if the Calc option has been enabled. The residence time for the slurry and the vapours in the unit. If there are any vapours leaving the unit, then this value will be smaller than the Slurry figure. |
| Options | ||
| ShowQFeed | Tick Box | QFeed and associated tab pages (e.g. Sp) will become visible, showing the properties of the combined feed stream. See Material Flow Section. This will be prior to any sub-model (e.g. reactions) actions. |
| ShowQFeedProdSide | Tick Box | QFeedProdSide and associated tab pages (e.g. Sp) will become visible. See Material Flow Section. |
| ShowQTCEFeed | Tick Box | QTCEFeed and associated tab pages (e.g. Sp) will become visible, see Material Flow Section. The TCE feed is the actual feed to the RO unit. The max recovery option works by removing water from the feed iteratively until we get the required solids in the reject. |
| ShowQTCEProd | Tick Box | QTCEProd and associated tab pages (e.g. Sp) will become visible, see Material Flow Section. The TCE prod is the actual product from the RO unit. The max recovery option works by removing water from the feed iteratively until we get the required solids in the reject. |
| ShowQProd | Tickbox | When selected, the QProd and associated tab pages (e.g. Sp) will become visible, showing the properties of the Product stream. See Material Flow Section. Tags in the QProd tab can be used for controllers (e.g.: PGM files) and reports even when this option is not selected. |
| ShowQBrine | Tickbox | When selected, the QBrine and associated tab pages (e.g. Sp) will become visible, showing the properties of the Brine stream. See Material Flow Section. Tags in the QBrine tab can be used for controllers (e.g.: PGM files) and reports even when this option is not selected. |
| TrackStatus | Tick Box | If this box is checked, the unit will flag warnings if gases are present but no vent connected, or if solids are present. |
| Concentration Polarization | ||
| CPF | Calc | The concentration polarization using SysCAD density model. |
| CPF.TCE | Calc | The concentration polarization using {{{TCE}}} density model. |
| Separation Results | ||
| Yield | Calc | Fraction of pure water in the feed which is recovered to the product stream. |
| Efficiency | Calc | Fraction of liquid species other than water that are recovered to the brine stream. |
| Brine.PressDrop / PDrop | Calc | Pressure drop from the feed pressure to the brine stream. |
| Product | ||
| Prod.MassFlow / Prod.Qm | Calc | Total mass flow of the product stream. |
| Prod.WaterMassFlow / Prod.WaterQm | Calc | Mass flow of pure water in the product stream. |
| Prod.AqueousMassFlow / Prod.AqQm | Calc | Mass flow of aqueous species in the product stream. |
| Prod.ImpurityFrac / Prod.ImpFrac | Calc | Fraction of liquid species other than water in the product stream. |
| Prod.ImpurityConc / Prod.ImpConc | Calc | Concentration of liquid species other than water in the product stream. (Only visible when GridDisplay is ticked.) |
| Prod.VolFlow / Prod.Qv | Calc | Total volume flow of the product stream. |
| Prod.SolidMassFlow / Prod.SQm | Calc | Mass flow of solids in the product stream. (Only visible when GridDisplay is unticked.) |
| Prod.LiquidMassFlow / Prod.LQm | Calc | Mass flow of liquids in the product stream. (Only visible when GridDisplay is unticked.) |
| Prod.SolidFrac / Prod.Sf | Calc | Mass fraction of solids in the product stream. (Only visible when GridDisplay is unticked.) |
| Prod.LiquidFrac / Prod.Lf | Calc | Mass fraction of liquids in the product stream. (Only visible when GridDisplay is unticked.) |
| Prod.Temperature / Prod.T | Calc | Temperature of the product stream. |
| Prod.Pressure / Prod.P | Calc | Pressure of the product stream. |
| Prod.Density / Prod.Rho | Calc | Density of the product stream. |
| Brine | ||
| Brine.MassFlow / Brine.Qm | Calc | Total mass flow of the brine stream. |
| Brine.WaterMassFlow / Brine.WaterQm | Calc | Mass flow of pure water in the brine stream. |
| Brine.AqueousMassFlow / Brine.AqQm | Calc | Mass flow of aqueous species in the brine stream. |
| Brine.ImpurityFrac / Brine.ImpFrac | Calc | Fraction of liquid species other than water in the brine stream. |
| Brine.ImpurityConc / Brine.ImpConc | Calc | Concentration of liquid species other than water in the brine stream. (Only visible when GridDisplay is ticked.) |
| Brine.VolFlow / Brine.Qv | Calc | Total volume flow of the brine stream. |
| Brine.SolidMassFlow / Brine.SQm | Calc | Mass flow of solids in the brine stream. (Only visible when GridDisplay is unticked.) |
| Brine.LiquidMassFlow / Brine.LQm | Calc | Mass flow of liquids in the brine stream. (Only visible when GridDisplay is unticked.) |
| Brine.SolidFrac / Brine.Sf | Calc | Mass fraction of solids in the brine stream. (Only visible when GridDisplay is unticked.) |
| Brine.LiquidFrac / Brine.Lf | Calc | Mass fraction of liquids in the brine stream. (Only visible when GridDisplay is unticked.) |
| Brine.Temperature / Brine.T | Calc | Temperature of the brine stream. |
| Brine.Pressure / Brine.P | Calc | Pressure of the brine stream. |
| Brine.Density / Brine.Rho | Calc | Density of the brine stream. |
| GridDisplay | Tickbox | Toggles between showing the product and brine stream results in a grid (table) format or in a list. This is a global selection that will affect the display of results in other access windows. |
| Solids Tracking | ||
| Feed.SolidMassFlow / SQm | Calc | Mass flow of solids in the feed to the unit. |
| Interface.SolidMassFlow / SQm | Calc | |
| Brine.SolidMassFlow / SQm | Calc | Mass flow of solids in the brine stream. |
| Prod.SolidMassFlow / SQm | Calc | Mass flow of solids in the product stream. |
| Energy Balance | ||
| Operating.T | Calc | The operating temperature of unit. |
| HeatFlow.Product | Calc | |
| HeatFlow.Brine | Calc | |