The Feed Inlet () feature is used for adding inlet streams to the reactor.

After adding a Reaction node and setting its Reactor to CSTR, constant volume, CSTR, constant mass/generic, or Semi, add a Feed Inlet node from the Reaction Engineering toolbar or right-click the Reaction Engineering node to add it from the context menu.

Edit the Volumetric feed rate (vf) (SI unit: m3/s) to fit the modeling conditions.

The Feed inlet temperature (Tf) is required as input when nonisothermal conditions are investigated (Energy Balance is set to Include).

This section is available when Energy Balance is set to Exclude.

For each of the Species, enter a value or expression in the table for the Concentration (mol/m^3) to set the composition of the inlet stream.

This section is available when Energy Balance is set to Include.

For each of the species, enter values or expressions in the table for the Concentration (mol/m^3) and Species enthalpy (J/mol) to set both the composition and enthalpy of the feed inlet stream. The column Enthalpy provides a combo box to select the type of enthalpy sources, that is, taken from Species enthalpy (a Species node) or by User defined. The default values for Species enthalpy (J/mol) are enthalpy variable (of a Species node) expressions.