Template:TCETank Tab Page

Unit Type: {{{TCE}}}Tank - 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
Capacity.Volume	Input	The volume of the tank. Visible in dynamic mode only.
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).
PresetData...
UsePreset	Tickbox	If ticked, will allow user to set temperature, level and composition of the tank 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 tank at startup.
Pressure / P	Input	Only visible if UsePreset has been enabled. The pressure of the contents of the tank at startup.
Level	Input	Only visible if UsePreset has been enabled. The level of the tank 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 tank content or {{{TCE}}} calculations.
ShowQOF	Tickbox	Allows the user to view the QOF and associated tab pages, showing the properties of the overflow stream. See Material Flow Section. This will be the perfectly mixed tank contents after {{{TCE}}} calculations.
ShowQOutlet	Tickbox	Allows the user to view the QOutlet and associated tab pages, showing the properties of the outlet stream. See Material Flow Section. This will be the perfectly mixed tank contents after {{{TCE}}} calculations with the filter applied.
Results Summary (Tank)
Temperature / T	Calc	The current temperature of the contents of the tank.
Density / Rho	Calc	The current density of the contents of the tank.
TotalVol / Vt	Calc	The current volume of the contents of the tank.
Level / Lvl	Calc	The current level of the contents of the tank.
SolidFrac / Sf	Calc	The current fraction of solids in the contents of the tank.
TotalMass / Mt	Calc	The current mass of the contents of the tank.
InitTtlMass / InitMt	Calc	The mass of the contents of the tank at the start of the solver run.
DeltaTtlMass / DeltaMt	Calc	The total change in mass of the contents of the tank since the start of the solver run (TotalMass - InitTtlMass).
MassRateOfChange / QmAcc	Calc	The rate of accumulation of mass in the content of the tank.
MtAcc	Calc	The total change of mass over the time step.
Results Summary (Outlet Streams)
(The following group of tags are shown for each Product outlet stream connected to the Tank)
XXX Outlet Stream
XXX ...
CapControl.MassFlowReqd / QmReqd	Calc	Outlet mass flowrate required based on capacity control requirements (only relevant if downstream pipe is in push mode).
Pull.MassFlowReqd / QmReqd	Calc	Outlet mass flowrate required based on downstream pull requirements (only relevant if downstream pipe is in pull mode).
MassFlowReqd / QmReqd	Calc	Outlet mass flowrate required applied to the outlet pipe (minimum of above 2 specifications).
MassFlow / Qm	Calc	Actual outlet mass flowrate of the outlet stream.
VolFlow / Qv	Calc	Actual outlet volumetric flowrate of the outlet stream.