Basic Pond Model
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NOTE: This feature is currently in BETA with limited release. Please contact us ([email protected]) if you are interested in using this model. This page is currently under development and details may change. Use with caution - we do not guarantee compatibility between different BETA versions. |
Navigation: Models ➔ Material Handling Models ➔ Basic Pond Model
General Description
The Basic Pond model is used in the Dynamic mode to emulate an Evaporation Pond. The user has the option to divide the pond into two layers, a bed where most of the solids settle and a clarified liquor layer for liquids, or consider the pond as a single layer. In any case, the concentration of the pore liquid in the bed layer and the concentration of the supernatant pond liquid is always equal and in equilibrium with the solids.
Inputs and Outputs
| Label | Required Optional |
Input Output |
Number of Connections | Description | |
| Min | Max | ||||
| Feed | Required | In | 1 | 10 | The feed to the Pond. |
| Overflow | Required | Out | 1 | 1 | Pond overflow stream. |
| CL_Out | Optional | Out | 0 | 1 | Outlet stream from the Clarified Liquor layer. |
| Bed_Out | Optional | Out | 0 | 1 | Outlet stream from the Bed layer. |
| Seepage | Optional | Out | 0 | 1 | Pond seepage. |
| Vent | Optional | Out | 0 | 1 | Vent Stream (Vapour Only). |
Data Sections
- BasicPond tab - The first tab contains general information relating to the unit and allows the user to configure the unit.
- Outlets tab - Optional tab, only visible if one of the optional slurry outlets are connected (CL_Out, Bed_Out or Seepage). This tab allows user to configure the various outputs from the pond as defined in the list of outputs above.
- Results tab - Contains results of the model including summary of content parameters.
- CRB - Optional tab, only visible if Rxns.Option = CRB.
- MU - Optional tab, or multiple tabs if more than 1 Makeup is selected. Only visible if one of more Makeups are enabled in the Evaluation Block on the first tab page.
- QFeed - Optional tab, only visible if ShowQFeed is enabled on the first tab page. This page shows the properties of the mixed stream as the feed to the unit. If user has specified a required pressure in the unit, the mixed feed will be set to this pressure. This may cause the temperature of the mixture to change if the delta P is significantly different.
- Bed tab - Optional tab, only visible if BedLayer.Partition and ShowBed are enabled on the first tab page. Contains data on the material in the bed.
- CL tab - Optional tab, only visible if BedLayer.Partition and ShowCL are enabled on the first tab page. Contains data on the material in the clarified liquor layer.
- Content tab - contains data on the material in the pond.
- Preset tab - Optional tab, only visible if UsePreset option is enabled on the first tab page. Allows user to define the Preset composition.
- QCL - Optional tab, only visible if the CL_Out outlet is connected and ShowQCL is enabled on the first tab page. This page shows the properties of the CL_Out stream.
- QBed - Optional tab, only visible if the Bed_Out outlet is connected and ShowQBed is enabled on the first tab page. This page shows the properties of the Bed_Out stream.
- Info tab - contains general settings for the unit and allows the user to include documentation about the unit and create Hyperlinks to external documents.
- Links tab, contains a summary table for all the input and output streams.
- Audit tab - contains summary information required for Mass and Energy balance. See Model Examples for enthalpy calculation Examples.
BasicPond tab page
Unit Type: BasicPond - The first tab page in the access window will have this name.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| 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 (Pond Size) | ||
| Capacity.Volume | Input | The volume of the pond. |
| Pond/Capacity.Area | Input | The surface area of the pond. |
| Pond/Capacity.Depth | Calc | The depth of the pond, calculated by Depth = Volume / Area. |
| Requirements | ||
| TemperatureReqd / T_Reqd | Input | The required temperature of the pond. |
| Rxns.Option | None | There are no reactions in the pond. |
| CRB | The user can specify reactions to occur on the pond contents. If this is selected then the associated page, CRB becomes visible and may be configured. Note: The user does not have to configure a reaction file, even if this option is selected. | |
| Rxns.LiqBypassFrac | Input | Only visible if Rxns.Options = CRB. The fraction of the liquids that bypass the reaction block. |
| Rxns.SolBypassFrac | Input | Only visible if Rxns.Options = CRB. The fraction of the solids that bypass the reaction block. |
| BedLayer.Partition | Tickbox | Separates the contents of the pond into two layers, Clarified Liquor and Bed. The Bed layer is the bottom layer. |
| BedLayer.FracOfSolids | Input | Only visible if BedLayer.Partition has been enabled. The fraction of the solids that report to the Bed layer. |
| BedLayer.LiquidFrac | Input | Only visible if BedLayer.Partition has been enabled. The fraction liquids in the Bed layer. |
| Requirements (Evaporation) | ||
| Evap.Method | None | There is no evaporation from the pond. |
| Massflow | The user can specify the mass flow of water to be evaporated. | |
| Volumeflow | The user can specify the volume flow of water to be evaporated. | |
| Height Rate | The user can specify the rate of evaporation of water as a length per unit time. This will be multiplied by the surface area of the pond to obtain a volume of water to be evaporated. | |
| Evap.QmReqd | Input | Only visible if Evap.Method = Massflow. The mass flow of water to be evaporated. |
| Evap.QvReqd | Input | Only visible if Evap.Method = Volumeflow. The volume flow of water to be evaporated. |
| Evap.RateReqd | Input | Only visible if Evap.Method = Height Rate. The required evaporation rate. |
| Evap.MinWaterFrac | Input | Visible if Evap.Method is any method other than None. The minimum fraction of water to be maintained in the pond. Evaporation may be less than specified to prevent the fraction of water being less than this value. |
| EB... (Evaluation Block) | ||
| 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. |
| PresetData... | ||
| UsePreset | Tickbox | If ticked, will allow user to set temperature, level and composition of the pond at startup. The composition can be set on the Preset tab page. |
| Temperature / T | Input | Only visible if UsePreset has been enabled. The temperature of the contents of the pond at startup. |
| Level | Input | Only visible if UsePreset has been enabled. The level of the pond at startup. |
| Options | ||
| TrackOverflow | Tickbox | If ticked, will enable warnings if material is sent to overflow stream. |
| ShowQFeed | Tickbox | Allows the user to view the QFeed and associated tab pages, showing the properties of the combined feed stream. See Material Flow Section. This will be prior to any sub-model actions, mixing with the pond content or Basic calculations. |
| ShowBed | Tickbox | Only visible if BedLayer.Partition has been enabled. Allows the user to view the Bed and associated tab pages, showing the properties of the Bed layer. See Material Content Section. |
| ShowCL | Tickbox | Only visible if BedLayer.Partition has been enabled. Allows the user to view the CL and associated tab pages, showing the properties of the Clarified Liquor layer. See Material Content Section. |
| ShowQCL | Tickbox | Only visible if CL_Out outlet has been connected. Allows the user to view the QCL and associated tab pages, showing the properties of the Clarified Liquor outlet stream. See Material Flow Section. |
| ShowQBed | Tickbox | Only visible if Bed_Out outlet has been connected. Allows the user to view the QBed and associated tab pages, showing the properties of the Bed outlet stream. See Material Flow Section. |
Outlets tab page
Notes:
- All gases exit via the Gas Vent and cannot exit via normal Outlet links.
- If no Gas Vent is connected, then any Gas will exit via an automatically created Gas Spill direct link.
| Tag (Long/Short) | Input/ Calc | Description |
|---|---|---|
| (NOTE: Most fields will not be shown for a particular outlet if it is not connected) | ||
| Requirements (Clarified Liquor Outlet) | ||
| CL... | ||
| ConnectedPipe | Display | The tag of the connected pipe for the Clarified Liquor Outlet. |
| Order | Display | The order used for determining outlet flows. |
| Filter | None | All liquid and solid material will be able to exit via the connected pipe. |
| Block-Solids | Solids will be not be allowed to exit via the connected pipe. | |
| Block-Liquids | Liquids will be not be allowed to exit via the connected pipe. | |
| Composition | Allows the user to specify the solid, liquid and vapour fractions. | |
| Individual Phase | Allows the user to specify an individual phase to draw from the pond. | |
| Composition.SolidFrac / Sf | Input | Only visible if Filter = Composition. The required solid fraction of the stream. |
| Composition.LiquidFrac / Lf | Input | Only visible if Filter = Composition. The required liquid fraction of the stream. |
| Composition.VapourFrac / Vf | Input | Only visible if Filter = Composition. The required vapour fraction of the stream. |
| IPhase / IPh | Input | Only visible if Filter = Individual Phase. The required individual phase of the stream. |
| CL_Out... | ||
| Outlet XXX | ||
| These Output connection tags are also available on the Pipe access window. Any changes made here will be updated on the pipe access window and vice-versa. | ||
| CapacityControl | Off | The maximum mass flow through the outlet will be set to unlimited amount (uncontrolled). |
| ByMassFlow | The user can specify the maximum mass flow through the outlet. | |
| ByVolumeFlow | The user can specify the maximum volumetric flow through the outlet. | |
| Qm.ReqdCapacity / Qm.Capacity | Input | Visible with the ByMassFlow method. The required pipe Capacity in mass flow. |
| Qm.MinCapacity / Qm.MinCap | Input | Visible with the ByMassFlow method. The minimum user specified flow capacity by mass. |
| Qm.MaxCapacity / Qm.MaxCap | Input | Visible with the ByMassFlow method. The maximum user specified flow capacity by mass. Enter * for unlimited flow. |
| Qv.ReqdCapacity / Qv.Capacity | Input | Visible with the ByVolumeFlow method. The required pipe Capacity in volumetric flow. |
| Qv.MinCapacity / Qv.MinCap | Input | Visible with the ByVolumeFlow method. The minimum user specified flow capacity by volume. |
| Qv.MaxCapacity / Qv.MaxCap | Input | Visible with the ByVolumeFlow method. The maximum user specified flow capacity by volume. Enter * for unlimited flow. |
| MeasRho | Display | The stream density used when converting between mass and volume flows. |
| OverCapacity | Spill | If more material enters the pipe then the Maximum Capacity value, then the excess material will be 'spilled' and sent to the Spills area. |
| Accept | If more material enters the pipe then the Maximum Capacity value, then the pipe must accept the excess material. | |
| BatchMethod | None | The Batch functionality is not enabled. |
| Total Mass | The Batch functionality is enabled and the required batch size is defined in terms of Mass flow. Further fields will become visible if this option is selected allowing the user to set the required batch mass. | |
| Total Volume | The Batch functionality is enabled and the required batch size is defined in terms of Volume flow. Further fields will become visible if this option is selected allowing the user to set the required batch volume. | |
| The following fields will be visible if Total Mass is selected as the Batch method. | ||
| M.BatchAddition | Input | The Mass of the required Batch. This amount of material will be allowed to flow out of the pipe at the rate specified in Qm.Capacity or Qv.Capacity. When this value is set the amount of material will be added to the amount of material already in M.BatchRemaining (the field below), and then this field will revert to 0. |
| M.BatchRemaining | Calc / Input | The Mass of material currently in a Batch, i.e. the amount of material in a Batch that still has to flow through the pipe. Normally this value is initialised at the start of a run and then it is calculated by SysCAD from the amount required in M.BatchAddition and the amount already delivered by the batch. However, the user may set this value and hence override the calculated Batch amount at any stage. If the users sets this as Undefined (or '*') this is equivalent to any infinite Batch and therefore the flow through the pipe will not be restricted. |
| M.BatchTotal | Display | The Total Mass that has flowed through the pipe using the Batch addition method. |
| The following fields will be visible if Total Volume is selected as the Batch method. | ||
| V.BatchAddition | Input | The Volume of the required Batch. This amount of material will be allowed to flow out of the pipe at the rate specified in Qm.Capacity or Qv.Capacity. When this value is set the amount of material will be added to the amount of material already in V.BatchRemaining (the field below), and then this field will revert to 0. |
| V.BatchRemaining | Calc / Input | The Volume of material currently in a Batch, i.e. the amount of material in a Batch that still has to flow through the pipe. Normally this value is initialised at the start of a run and then it is calculated by SysCAD from the amount required in V.BatchAddition and the amount already delivered by the batch. However, the user may set this value and hence override the calculated Batch amount at any stage. If the users sets this as Undefined (or '*') this is equivalent to any infinite Batch and therefore the flow through the pipe will not be restricted. |
| V.BatchTotal | Display | The Total Volume that has flowed through the pipe using the Batch addition method. |
| The following fields will be visible if Total Mass or Total Volume is selected as the Batch method. | ||
| BatchState | None | No Batch mode has been set. |
| Inactive | A Batch method has been selected, but the Batch is undefined. | |
| Busy | A Batch method has been selected, there is material remaining in the Batch, and hence there is flow in the pipe due to the Batch. | |
| Stop Flow | A Batch method has been selected, there is NO material remaining in the Batch, and hence there is no flow in the pipe, i.e. the Batch will prevent any flow in the pipe. | |
| BatchClearOnEmpty | Tickbox | If enabled, any remaining batch amount will be cleared on Empty action command. |
| BatchUsePreset | Tickbox | This enables the use of Preset for the Batch amount. |
| M or V.BatchUsePreset | Input | The Mass or Volume of the Batch when the model is Preset. Refer to Actions Commands - Preset for more information. |
| Requirements (Seepage Outlet) | ||
| Seepage... | ||
| ConnectedPipe | Display | The tag of the connected pipe for the Seepage Outlet. |
| Order | Display | The order used for determining outlet flows. |
| Filter | None | All liquid and solid material will be able to exit via the connected pipe. |
| Block-Solids | Solids will be not be allowed to exit via the connected pipe. | |
| Block-Liquids | Liquids will be not be allowed to exit via the connected pipe. | |
| Composition | Allows the user to specify the solid, liquid and vapour fractions. | |
| Individual Phase | Allows the user to specify an individual phase to draw from the pond. | |
| Composition.SolidFrac / Sf | Input | Only visible if Filter = Composition. The required solid fraction of the stream. |
| Composition.LiquidFrac / Lf | Input | Only visible if Filter = Composition. The required liquid fraction of the stream. |
| Composition.VapourFrac / Vf | Input | Only visible if Filter = Composition. The required vapour fraction of the stream. |
| IPhase / IPh | Input | Only visible if Filter = Individual Phase. The required individual phase of the stream. |
| Seepage... | ||
| Outlet XXX | ||
| These Output connection tags are also available on the Pipe access window. Any changes made here will be updated on the pipe access window and vice-versa. | ||
| CapacityControl | Off | The maximum mass flow through the outlet will be set to unlimited amount (uncontrolled). |
| ByMassFlow | The user can specify the maximum mass flow through the outlet. | |
| ByVolumeFlow | The user can specify the maximum volumetric flow through the outlet. | |
| Qm.ReqdCapacity / Qm.Capacity | Input | Visible with the ByMassFlow method. The required pipe Capacity in mass flow. |
| Qm.MinCapacity / Qm.MinCap | Input | Visible with the ByMassFlow method. The minimum user specified flow capacity by mass. |
| Qm.MaxCapacity / Qm.MaxCap | Input | Visible with the ByMassFlow method. The maximum user specified flow capacity by mass. Enter * for unlimited flow. |
| Qv.ReqdCapacity / Qv.Capacity | Input | Visible with the ByVolumeFlow method. The required pipe Capacity in volumetric flow. |
| Qv.MinCapacity / Qv.MinCap | Input | Visible with the ByVolumeFlow method. The minimum user specified flow capacity by volume. |
| Qv.MaxCapacity / Qv.MaxCap | Input | Visible with the ByVolumeFlow method. The maximum user specified flow capacity by volume. Enter * for unlimited flow. |
| MeasRho | Display | The stream density used when converting between mass and volume flows. |
| OverCapacity | Spill | If more material enters the pipe then the Maximum Capacity value, then the excess material will be 'spilled' and sent to the Spills area. |
| Accept | If more material enters the pipe then the Maximum Capacity value, then the pipe must accept the excess material. | |
| BatchMethod | None | The Batch functionality is not enabled. |
| Total Mass | The Batch functionality is enabled and the required batch size is defined in terms of Mass flow. Further fields will become visible if this option is selected allowing the user to set the required batch mass. | |
| Total Volume | The Batch functionality is enabled and the required batch size is defined in terms of Volume flow. Further fields will become visible if this option is selected allowing the user to set the required batch volume. | |
| The following fields will be visible if Total Mass is selected as the Batch method. | ||
| M.BatchAddition | Input | The Mass of the required Batch. This amount of material will be allowed to flow out of the pipe at the rate specified in Qm.Capacity or Qv.Capacity. When this value is set the amount of material will be added to the amount of material already in M.BatchRemaining (the field below), and then this field will revert to 0. |
| M.BatchRemaining | Calc / Input | The Mass of material currently in a Batch, i.e. the amount of material in a Batch that still has to flow through the pipe. Normally this value is initialised at the start of a run and then it is calculated by SysCAD from the amount required in M.BatchAddition and the amount already delivered by the batch. However, the user may set this value and hence override the calculated Batch amount at any stage. If the users sets this as Undefined (or '*') this is equivalent to any infinite Batch and therefore the flow through the pipe will not be restricted. |
| M.BatchTotal | Display | The Total Mass that has flowed through the pipe using the Batch addition method. |
| The following fields will be visible if Total Volume is selected as the Batch method. | ||
| V.BatchAddition | Input | The Volume of the required Batch. This amount of material will be allowed to flow out of the pipe at the rate specified in Qm.Capacity or Qv.Capacity. When this value is set the amount of material will be added to the amount of material already in V.BatchRemaining (the field below), and then this field will revert to 0. |
| V.BatchRemaining | Calc / Input | The Volume of material currently in a Batch, i.e. the amount of material in a Batch that still has to flow through the pipe. Normally this value is initialised at the start of a run and then it is calculated by SysCAD from the amount required in V.BatchAddition and the amount already delivered by the batch. However, the user may set this value and hence override the calculated Batch amount at any stage. If the users sets this as Undefined (or '*') this is equivalent to any infinite Batch and therefore the flow through the pipe will not be restricted. |
| V.BatchTotal | Display | The Total Volume that has flowed through the pipe using the Batch addition method. |
| The following fields will be visible if Total Mass or Total Volume is selected as the Batch method. | ||
| BatchState | None | No Batch mode has been set. |
| Inactive | A Batch method has been selected, but the Batch is undefined. | |
| Busy | A Batch method has been selected, there is material remaining in the Batch, and hence there is flow in the pipe due to the Batch. | |
| Stop Flow | A Batch method has been selected, there is NO material remaining in the Batch, and hence there is no flow in the pipe, i.e. the Batch will prevent any flow in the pipe. | |
| BatchClearOnEmpty | Tickbox | If enabled, any remaining batch amount will be cleared on Empty action command. |
| BatchUsePreset | Tickbox | This enables the use of Preset for the Batch amount. |
| M or V.BatchUsePreset | Input | The Mass or Volume of the Batch when the model is Preset. Refer to Actions Commands - Preset for more information. |
| Requirements (Bed Outlet) | ||
| Bed... | ||
| ConnectedPipe | Display | The tag of the connected pipe for the Bed Outlet. |
| Order | Display | The order used for determining outlet flows. |
| Composition.SolidFrac / Sf | Input | The required solid fraction of the stream. |
| Composition.LiquidFrac / Lf | Input | The required liquid fraction of the stream. |
| Bed_Out... | ||
| Outlet XXX | ||
| These Output connection tags are also available on the Pipe access window. Any changes made here will be updated on the pipe access window and vice-versa. | ||
| CapacityControl | Off | The maximum mass flow through the outlet will be set to unlimited amount (uncontrolled). |
| ByMassFlow | The user can specify the maximum mass flow through the outlet. | |
| ByVolumeFlow | The user can specify the maximum volumetric flow through the outlet. | |
| Qm.ReqdCapacity / Qm.Capacity | Input | Visible with the ByMassFlow method. The required pipe Capacity in mass flow. |
| Qm.MinCapacity / Qm.MinCap | Input | Visible with the ByMassFlow method. The minimum user specified flow capacity by mass. |
| Qm.MaxCapacity / Qm.MaxCap | Input | Visible with the ByMassFlow method. The maximum user specified flow capacity by mass. Enter * for unlimited flow. |
| Qv.ReqdCapacity / Qv.Capacity | Input | Visible with the ByVolumeFlow method. The required pipe Capacity in volumetric flow. |
| Qv.MinCapacity / Qv.MinCap | Input | Visible with the ByVolumeFlow method. The minimum user specified flow capacity by volume. |
| Qv.MaxCapacity / Qv.MaxCap | Input | Visible with the ByVolumeFlow method. The maximum user specified flow capacity by volume. Enter * for unlimited flow. |
| MeasRho | Display | The stream density used when converting between mass and volume flows. |
| OverCapacity | Spill | If more material enters the pipe then the Maximum Capacity value, then the excess material will be 'spilled' and sent to the Spills area. |
| Accept | If more material enters the pipe then the Maximum Capacity value, then the pipe must accept the excess material. | |
| BatchMethod | None | The Batch functionality is not enabled. |
| Total Mass | The Batch functionality is enabled and the required batch size is defined in terms of Mass flow. Further fields will become visible if this option is selected allowing the user to set the required batch mass. | |
| Total Volume | The Batch functionality is enabled and the required batch size is defined in terms of Volume flow. Further fields will become visible if this option is selected allowing the user to set the required batch volume. | |
| The following fields will be visible if Total Mass is selected as the Batch method. | ||
| M.BatchAddition | Input | The Mass of the required Batch. This amount of material will be allowed to flow out of the pipe at the rate specified in Qm.Capacity or Qv.Capacity. When this value is set the amount of material will be added to the amount of material already in M.BatchRemaining (the field below), and then this field will revert to 0. |
| M.BatchRemaining | Calc / Input | The Mass of material currently in a Batch, i.e. the amount of material in a Batch that still has to flow through the pipe. Normally this value is initialised at the start of a run and then it is calculated by SysCAD from the amount required in M.BatchAddition and the amount already delivered by the batch. However, the user may set this value and hence override the calculated Batch amount at any stage. If the users sets this as Undefined (or '*') this is equivalent to any infinite Batch and therefore the flow through the pipe will not be restricted. |
| M.BatchTotal | Display | The Total Mass that has flowed through the pipe using the Batch addition method. |
| The following fields will be visible if Total Volume is selected as the Batch method. | ||
| V.BatchAddition | Input | The Volume of the required Batch. This amount of material will be allowed to flow out of the pipe at the rate specified in Qm.Capacity or Qv.Capacity. When this value is set the amount of material will be added to the amount of material already in V.BatchRemaining (the field below), and then this field will revert to 0. |
| V.BatchRemaining | Calc / Input | The Volume of material currently in a Batch, i.e. the amount of material in a Batch that still has to flow through the pipe. Normally this value is initialised at the start of a run and then it is calculated by SysCAD from the amount required in V.BatchAddition and the amount already delivered by the batch. However, the user may set this value and hence override the calculated Batch amount at any stage. If the users sets this as Undefined (or '*') this is equivalent to any infinite Batch and therefore the flow through the pipe will not be restricted. |
| V.BatchTotal | Display | The Total Volume that has flowed through the pipe using the Batch addition method. |
| The following fields will be visible if Total Mass or Total Volume is selected as the Batch method. | ||
| BatchState | None | No Batch mode has been set. |
| Inactive | A Batch method has been selected, but the Batch is undefined. | |
| Busy | A Batch method has been selected, there is material remaining in the Batch, and hence there is flow in the pipe due to the Batch. | |
| Stop Flow | A Batch method has been selected, there is NO material remaining in the Batch, and hence there is no flow in the pipe, i.e. the Batch will prevent any flow in the pipe. | |
| BatchClearOnEmpty | Tickbox | If enabled, any remaining batch amount will be cleared on Empty action command. |
| BatchUsePreset | Tickbox | This enables the use of Preset for the Batch amount. |
| M or V.BatchUsePreset | Input | The Mass or Volume of the Batch when the model is Preset. Refer to Actions Commands - Preset for more information. |
| CL Outlet Stream | ||
| CL... | ||
| CapControl.MassFlowReqd / QmReqd | Calc | The mass flow required in the pipe set by the capacity control. |
| Pull.MassFlowReqd / QmReqd | Calc | |
| MassFlowReqd / QmReqd | Calc | The mass flow required in the pipe. Minimum of CapControl.MassFlowReqd and Pull.MassFlowReqd. |
| MassFlow / Qm | Calc | The actual mass flow in the pipe. |
| VolFlow / Qv | Calc | The actual volumetric flow in the pipe. |
| Seepage Outlet Stream | ||
| Seepage... | ||
| CapControl.MassFlowReqd / QmReqd | Calc | The mass flow required in the pipe set by the capacity control. |
| Pull.MassFlowReqd / QmReqd | Calc | |
| MassFlowReqd / QmReqd | Calc | The mass flow required in the pipe. Minimum of CapControl.MassFlowReqd and Pull.MassFlowReqd. |
| MassFlow / Qm | Calc | The actual mass flow in the pipe. |
| VolFlow / Qv | Calc | The actual volumetric flow in the pipe. |
| Bed Outlet Stream | ||
| Bed... | ||
| CapControl.MassFlowReqd / QmReqd | Calc | The mass flow required in the pipe set by the capacity control. |
| Pull.MassFlowReqd / QmReqd | Calc | |
| MassFlowReqd / QmReqd | Calc | The mass flow required in the pipe. Minimum of CapControl.MassFlowReqd and Pull.MassFlowReqd. |
| MassFlow / Qm | Calc | The actual mass flow in the pipe. |
| VolFlow / Qv | Calc | The actual volumetric flow in the pipe. |
Results tab page
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| Results Summary (Pond Contents) | ||
| Temperature / T | Calc | The current temperature of the contents of the pond. |
| Density / Rho | Calc | The current density of the contents of the pond. |
| TotalVol / Vt | Calc | The current volume of the contents of the pond. |
| Level / Lvl | Calc | The current level of the contents of the pond. |
| SolidFrac / Sf | Calc | The current fraction of solids in the contents of the pond. |
| TotalMass / Mt | Calc | The current mass of the contents of the pond. |
| InitTtlMass / InitMt | Calc | The mass of the contents of the pond at the start of the solver run. |
| DeltaTtlMass / DeltaMt | Calc | The total change in mass of the contents of the pond since the start of the solver run (TotalMass - InitTtlMass). |
| MassRateOfChange / QmAcc | Calc | The rate of accumulation of mass in the content of the pond. |
| MtAcc | Calc | The total change of mass over the time step. |
| Content.HeatFlow | Calc | |
| Results Summary (Bed Layer) (This section is only visible if BedLayer.Partition has been enabled.) | ||
| BedLayer.TotalMass / Mt | Calc | The current mass of the contents of the bed layer. |
| BedLayer.TotalVol / Vt | Calc | The current volume of the contents of the bed layer. |
| BedLayer.Level / Lvl | Calc | The current level of the bed layer. |
| BedLayer.SolidFrac / Sf | Calc | The current fraction of solids in the bed layer. |
| BedLayer.ContentFrac | Calc | The fraction by volume of the bed layer compared to the total volume of the contents of the pond (BedLayer.TotalVol / TotalVol). |
| BedLayer.HeatFlow | Calc | The current level of the bed layer. |
| Results Summary (CL) (This section is only visible if BedLayer.Partition has been enabled.) | ||
| CL.TotalMass / Mt | Calc | The current mass of the contents of the clarified liquor layer. |
| CL.TotalVol / Vt | Calc | The current volume of the contents of the clarified liquor layer. |
| CL.SolidFrac / Sf | Calc | The current fraction of solids in the clarified liquor layer. |
| CL.ContentFrac | Calc | The fraction by volume of the clarified liquor layer compared to the total volume of the contents of the pond (CL.TotalVol / TotalVol). |
| Results Summary (Evaporation) | ||
| Evap.MassFlow / Qm | Calc | The mass flow of water evaporated. |
| Evap.VolumeFlow / Qv | Calc | The volume flow of water evaporated. |
| Evap.Rate | Calc | The evaporation rate. |
| Evap.HeatFlow | Calc | The energy (heat) required for evaporation of water. |
| Results Summary (CRB) (This section is only visible if Rxns.Options = CRB.) | ||
| Rxns.Mt | Calc | |
| Rxns.HeatFlow | Calc | |
| Bypass.Mt | Calc | |
| Bypass.HeatFlow | Calc | |
| Results Summary (Streams) | ||
| Feed.MassFlow / Qm | Calc | The feed mass flow to the pond. |
| MassRateOfChange / QmAcc | Calc | The rate of accumulation of mass in the content of the pond. |
| CL.MassFlow / Qm | Calc | Visible if CL_Out stream is connected. The mass flow of the Clarified Liquor (CL_Out) stream. |
| Seepage.MassFlow / Qm | Calc | Visible if Seepage stream is connected. The mass flow of the Seepage stream. |
| Bed.MassFlow / Qm | Calc | Visible if Bed_Out stream is connected. The mass flow of the Bed outlet (Bed_Out) stream. |
| Overflow.MassFlow / Qm | Calc | The mass flow of the overflow stream. |
| Vent.MassFlow / Qm | Calc | The mass flow of the vent stream. |
| HeatFlows | ||
| Content.HeatFlow | Calc | |
| BedLayer.HeatFlow | Calc | Only visible if BedLayer.Partition has been enabled. |
| Evap.HeatFlow | Calc | The energy (heat) required for evaporation of water. |
| Bypass.HeatFlow | Calc | |
| Rxns.HeatFlow | Calc | Only visible if Rxns.Options = CRB. |
| HeatFlow | Calc | The sum of all heat flows. |
Preset tab page
The Preset page contains a Copy to Clipboard button which copies the current temperature, pressure and composition of the Preset to the clipboard for pasting into external programs such as Excel.
This page is used to set the required composition of the Pond when it is Preset. This is identical in functionality to the DSp page used in Feeders.
Adding this Model to a Project
Add to Configuration File
Sort either by DLL or Group:
| DLL: | MatHand3.dll |
→ | Units/Links | → | Material Handling: Pond | |
| or | Group: | EnergyTransfer |
→ | Units/Links | → | Material Handling: Pond |
See Model Selection for more information on adding models to the configuration file.
Insert into Project Flowsheet
| Insert Unit | → | Material Handling | → | Pond |
See Insert Unit for general information on inserting units.