Template:ChemApp DirectCalc OpMode

| valign="top" rowspan="5" | OpMode|| Temperature || The target variable is the Temperature of the final solution (output temperature).

FeedT The target variable is the Temperature of the feed solution (T and P are entered on the DInput tab page).

|- | Enthalpy CHEMAPP || The target variable is the Enthalpy of the final solution. ChemApp Enthalpy is maintained. |- | PhaseFormation || Available in full ChemApp only. The target variable is the amount of a particular phase present in the final solution. |- | PhasePrecipitation || Available in full ChemApp only. The target variable is the point of precipitation of a second phase from a single phase. For example, if you have a stream which is entirely gas phase, you can calculate the temperature at which a second phase starts to appear. |- | TemperatureReqd / T_Reqd || Input || Only visible if OpMode = Temperature. The user specified target temperature for the final solution. |- | dEnth.Reqd / dH.Reqd || Input || Only visible if OpMode = Enthalpy. The user specified target duty. |- | CalcEnthalpyBalance || Tickbox|| Optional when OpMode ≠ Enthalpy ChemApp. If an enthalpy balance around this unit using ChemApp database values is required, select this option. If not, untick this option to save computation time. Note: Unticking this option will also remove the enthalpy display from the Input and ChemAppResults tabs. For more information, see the topic Calculate Enthalpy Balance. |-

Phase List Only visible if OpMode = PhaseFormation or PhasePrecipitation. The user can select one phase from the list of all phases in the ChemApp database.

| MoleBasis || Tickbox || Only visible if OpMode = PhaseFormation. Selecting this tickbox allows user to specify the target mole flow. If this is not selected, then mass flow is used. |- | MassFlowReqd / QmReqd|| Input || Only visible if OpMode = PhaseFormation and MoleBasis = unticked. The user specified mass flow of the chosen phase/species that is to be formed. |- | MoleFlowReqd / QMlReqd || Input || Only visible if OpMode = PhaseFormation and MoleBasis = ticked. The user specified moles of the chosen phase/species that is to be formed. |-